Heaviest Objects In The Universe

The worst bad practice I do is I keep going to work.

Many years down the road I will probably look back and say I should have spent more time with my wife (who are you?) and children (wow, you are tall).

Cat: *walks onto keyboard*
Me: Aww how cute
Cat: $ git reset --hard HEAD

COOOOKKKIIIEEES!!!

Nothing is more permanent than a temporary fix.

Outside:
keep staring at the screen with a poker face.

Inside:
I WILL CHOP YOUR FINGER OFF IF YOU DARE TOUCH THE SCREEN AGAIN.

The relevant code was known to be unstable. Can't say that I was not warned :D

Developer (master's degree, -bleeping- smart guy, no kidding) was bragging on how he made a piece of code 3x faster (with the usual pinch that the original dev was incompetent) and spent nearly 6 weeks working on it (wrote his own parallel-foreach library because Microsoft's parallel library was "too slow").
I was the original dev and he didn't know I had my own performance counters where I broke down each stack (database access, network I/O, and the code logic).
Average time was around 5ms (yes milliseconds) and worst case was around 10 seconds. His '3x improvement' was based on the worst test case, which improved by about a second. Showed our boss my graph (laughed out loud, said 'WTF', other curse words) and the dev hasn't spoken to me in weeks (I say 'hi' in the hall and he keeps walking)
Take that master's degree and high IQ and shove it.

Run tests locally... all pass. Run tests on build server... fail..