In the unlikely event we lose bladder pressure, grab the mask firmly and place it over your nose and mouth while continuing to breath normally - preferably before the device is used for for it's intended function.
Personally I think that hole in the bottom needs to be a little wider, especially if you have rented a beer or two within the last few hours (you never actually "buy" beer as you don't get to keep it). Looks like there is serious potential for over-flow or back up which totally defeats the purpose.
I need to go to be earlier on Friday and Saturday nights so my brain at least works partially on Sunday.
Thanks to my buddy Red for the demo.