The only way I like to hold pee is in my mouth for a few minutes before swallowing it. I do love for someone else to hold theirs as long as possible so I get a good strong high volume drink.
Not suggesting drinking excessive amounts of water or other fluids. Just hold, and when pressure gets too much, let go. If I drink during holding it is only a couple of glasses at most.
I really would not suggest anything that is in any way risky.
Having said that, if monitors concerned in any way, then they should feel free to remove this thread.