sipping
Think of a funnel, pour water in slowly and it runs right through. Pour it in very fast out of a bucket lets say and it will back up before it runs through. Just after surgery you do not want to put undo pressure on your new, still healing stoma. Once your are properly healed then it is a comfort issue more than anything, like the previous post said feels like swallowing a brick.
pan head

Here's a good one for ya. In September on a camping trip my best friends sons and their friends talked us into shotgunning a beer. I was very good at it in the day. Well I won, my can went empty first. I guress there isnt enough room in the pouch for a 12 oz beer, foam shot 12 inches out of my head for a good 20 seconds, and we laughed for an hour. Happy weekend all.
Robert