It's been about 12 years ago that I was in S.Carolina and one night I got the urge to try taking an enema while driving.
I filled a 1/2 gal milk jug with water and took it and my 2-qt enema bag to the park about 25 miles from where I was staying.
After walking at the park for an hour of exercise I got in my van and filled my bag with the water and then hung it behind the drivers seat on a grab bar above the window. I then slipped the nozzle up my shorts leg and in my bottom and released the clip for a medium flow. I then started back to my motel room.
I was full in just a couple minutes and needed to get to the toilet quick but when I pulled up to the Motel there were 2 couples standing in front of the room next to mine talking and I had to wait about 5 minuts before thay left so I could work my way out of the van with the bag in my hand and hose up my backside and get in the room quickly without letting my water go.
I haven't thought about that in a long time and will have to do something along thet line again soon.