Whats the stupidest car mod you've ever done?

18 years old, second ever car was a 2.5PI triumph saloon, (first was a mk1 2000 triumph saloon} it was running horribly rich and stank of unburnt petrol decided to weaken the mixture a bit BY DRILLING THE THROTTLE BODY DISCS!!!!! Anyone for a 3000rpm tickover? OOPS!!!
exit stage left as I walked down the local scrappy for a set of twin strombergs for a 2.,5!!!
learnt a bit since then tho!!
RWDrules