Guys have you ever used the - its just shrinkage excuse?

I did once but it was only so the cops wouldn't bust me. One night after drinking at the bar I was on my way to the bus stop with a backpack full of pot and thought I better go down the alley for a pit stop. I was just about done when I heard a guy say - RCMP turn around with your hands out - I didn't want to take any chances so I didn't tuck it away or zip up and I turned around. I noticed that one of the cops was smirking so I said - what its just shrinkage because its cold out side (it was actually a warm summer night. The cops thought it was pretty funny and after they asked were I was going they gave me a warning then sent me on my way. Cheers!