The other instance was when my friends had just moved their business to a new warehouse location, and they wanted to have a welcoming party for employees/friends, so we staged our amps, guitars and drums on the upper mezzanine and started wailing, eventually getting all of our amps to volume 10...which never happened before or after in my lifetime...at the time I was playing a Tele thru a '64 Fender Deluxe Reverb, and I couldn't hear afterwards for about a half day...my buddy was playing a Marshall half stack, and I could barely hear my guitar over his amp. I cannot confirm or deny whether beer and weed was involved...