Stupid Mistakes?

i was just wondering what kinda mistakes oraccidents everyone else has done or what bad luck has occured......cus today i made one that p*ssed me off, i had just finished a remote start/ alarm and everything worked great but like an hour later it was still in the shop and i decide to check it again. it didnt start, the battery was drained! so im lookin and lookin and i noticed that the drivers pin switch wasnt there....so im all like 'what the h*ll?'  i also nicticed that all thge interior lights were on and i thoght it was the missing pin switch. so we pulled all the bulbs so the battery wouldnt drain. about 40 mins later i just haooened to see a switch that was turned  to 'on'..................................aboove it it was labeled in big lighted letters  'INTERIOR LIGHTS'!!!!! i da*m near kicked myself in the a*s!!!!...so the motto of that story is to alwas check the most simple things first and then move on to the more complex...but chances are it the easiest answer.

here's a good one.. an accident, but a good one.. was mounting a siren under in the front of a lincoln and had removed the black plastic cover in the front by the hood latch and was really going to hide the siren good.. I was mounting it and had a burr in the screw and when I applied pressurewith my drill, it slipping and went thru the AC condencor core and freon was everywhere.. shop looked like someone turned on a fog machine.. I don't try and go out the way to hide sirens anymore..

Try this one...back in 2000 I was working at this one shop, well...they wnated me to do a Remote Start and keyless on a 2001 Chevy 1500.  Well...I was fresh outta school, and knew almost nothign about alarms, but nknew audio...I figured only one way to learn.  well..thankfully they didn't plan any other installs for me that day.......Took me two hours ro realize it had passlock 2, than another hour to figure out how to by-pass...DEI techline, thank you very much. than it was onto to the keyless....figured it had to be easier than the remote start..well it all went good, except...I forgot to roll down the windows ( hey I alwyas did before, i guess with the rain outside I left them up when I brought it in )..and when I tested the locks...I went WAhoo...They locked..But they didnt' unlock and the key was inside the cab..out of my grasp  and the domelight was on......I called the dealership...and couldn't believe what they told me...they had no spare keys for that truck...so I had to pay $60 for them to make a new one and bring it down, by which time the battery was dead.  And no there were no other installers that day, they called in............That was one of my more funny as hell incidents when i look back.........

Was working on an install once and had a helper put a bunch of tools (drill, 2 tool bags w/hand tools, and a dremel kit) into a  large trashcan to get them "out of the weather"...and kindly not mention it to me....I dont think I have to elaborate more on that one...was pretty painful. 

J Rillia, when did you start doing this? Yesterday? We all have a screw up every now and then.. yours is coming, don't worry about that.. Of course, I've never done something so careless as locking a key in the car.. No offence meant to you Death Jester..