In a weekly series on WZLX.com, we examine the many crazy things we see on the MBTA all the time – and the life lessons we take from it.

Another rough week for the MBTA the last seven days, as it dealt with the fallout from the Green Line crash at Boylston station. The driver behind the incident was fired as a result, and the MBTA also rejected a safety proposal for the Green Line.

But that wasn’t the only issue on the Green Line this week, as police had to arrest a woman who threatened passengers with a knife. Oh, and a guy got stabbed on the bus in Roslindale, but he should be OK.

Well, besides that – and the addition of patrols to combat Red Line robberies – the MBTA is going along just swimmingly…Sort of. Here’s plenty of other stuff we “learned” about the T last week.

Despite constant complaints from riders about delays, many of the passengers actually cause it themselves.

Here we go again... They are holding all trains on the #redline due to a medical emergency. Stop jumping onto the rails people! #mbta

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Berfun (@Berfunella) December 03, 2012

If you need to get out through the front door of a crowded train, don’t get near the middle.

Front door exit only is quite possibly the worst thing of all time. Just missed my stop bc teenagers won't move the eff out of the way #mbta

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Caity Montagna (@cmont06) December 03, 2012

When it comes to getting a seat on a busy MBTA ride, it’s either play or get played.

it amazes me how many classless men ride the #mbta these days. gotta love being physically pushed so that someone else can have a seat.

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Stephanie Feeney (@stephaniefeeney) December 03, 2012

Watching a fight in a language you don’t understand while trying to figure out the context is better than watching any fight in your native language.

What's better than a fight on the #mbta? A fight in a foreign language. Or perhaps it's a spirited discussion, not sure.

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Andrew Applegate (@AndrewApplegate) December 03, 2012

Carrying a Christmas tree onto an MBTA train beats strapping it to the roof of your car.

This dude brought a Christmas tree on the most crowded bus in America. #christmasprobs #mbta http://t.co/hgWJVBJZ

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Ahhnyahh (@AineDirrane) December 03, 2012

Some people have earned the right to have a cold one.

Anytime is Busch time. #GreenLine #mbta #9am http://t.co/Ouebk5tI

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  (@BostonTPeople) December 04, 2012

Pigeon catching is an underrated MBTA activity while waiting for a train.

This morning's #MBTA excitement? Helping a guy chase a pigeon who got on at Alewife off the train at Davis Sq.

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Gabrielle Gurley (@gurleygg) December 04, 2012

You know you’re on the MBTA when people get looks for not snatching a seat.

I get the strangest looks when I offer to give up my seat on the subway. #Boston #MBTA

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Lindsey Clark (@lcclark10) December 04, 2012

The MBTA’s “Stroller Cat” has many talents…

Jake holds the ticket when we're on #mbta #strollercat http://t.co/3cVg7Sqv

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Aby-a-Day (@abyaday) December 04, 2012

MBTA drivers don’t usually get bathroom breaks…

I think I just witnessed an MBTA conductor on the green line pissing between two trolleys. #wtf

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Samantha =) (@SamanthaSouk) December 04, 2012

We finally know which MBTA employee is soaking up all the tax money from us.

The #mbta has added new security on the #GreenLine. http://t.co/vCrCYL9S

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  (@BostonTPeople) December 05, 2012

MBTA farts still have a small percentage of air in them, so it’s possible to survive them.

The air I am breathing on the #MBTA is not really air at all, but a thick, dark fart cloud

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Erin Santhouse (@esanthouse) December 05, 2012

Getting on the escalator at Porter Square station in Cambridge might be the #1 fear of all MBTA passengers, above getting attacked or crashing.

One of my greatest fears has become falling down the escalator at Porter. What's worse is how probable it is that this will happen. #mbta

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Shannon Watterson (@shawa330) December 07, 2012

To MBTA drivers, there is nothing more satisfying about their job than a perfectly timed door slam.

I am 100% convinced MBTA drivers get some sort of sick thrill from shutting doors in people's faces as they sprint to the doors.

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Rachel W (@Rachelll34) December 07, 2012

We now know why those MBTA trains always crash or need repairs…They’re being made by Philly fans!

#MBTA GM Davis at the Philadelphia plant where new commuter rail coaches are being built today http://t.co/uMblxWxt

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MBTA (@mbtaGM) December 07, 2012

See also: More things we learned from the MBTA