I do believe there’s fine print on the box somewhere that says “‘Gentle’ as compared to being thoroughly rogered in the prison shower.”
Um, yeah. Those laxatives cause the muscles to do their work, forcing you to propel something roughly the consistency of a brick, at high velocity.
Better to deal with the brick-i-tude than the propulsion system. In other words, Hillbillyqueen, do whatever you can to bulk up and soften things. Including things like prune juice, Fibercon (or other fiber supplements) accompanied by lots of fluid. Milk of magnesia, vile stuff that it is, is highly recommended by my son’s gastroenterologist, for softening things up.
“poop fairy” (snicker). One wonders what she’d leave for you once she found that little surprise under the pillow 
The Poop Fairy, she has returned!
I knew y’all would want to know.
Hey look - a giant snake! Brick, brick, brick.
Susan