Man, I am a sinner.
1. I very frequently will get one last Scotch "to go" from the Crown Room before leaving in case I have to wait a few extra minutes to board. No, I don't steal the CRC glasses. I simply pour the contents in one of the plastic cups that are for the water drinkers. I then place it upright in one of my laptop bags (it won't spill). I take the cup out the second I walk out of the CRC. If we board on time, I get to enjoy a drink before the FA asks me what I would like next. Obviously, another Scotch, please.
2. I like to have a Scotch or two (that might be a little obvious by this point in the story) at the end of the day, usually while finishing up work in my hotel room. I hate paying room service prices for it though. On Monday, I buy a fifth at the liquor store, and enjoy it for a few nights. Thursday night, my half empty Scotch bottle goes in my carry-on for the trip home where it is poured into a decanter. Now I don't do this every week

but I have never, ever been stopped once (knock on wood, 'cause I'll be doing it this week too).