Pee breaks

[mimi]

If a child says they have to pee then I take them to the washroom. When it is a regular washroom visit ie before snacks, after lunch etc then, unless someone does a bm, I don't flush until everyone has gone. Besides being cost effective I also just don't like to waste water. The kids don't mind and I certainly wouldn't tell them parents this is how we manage a pee break.
As for forbid, I would ask the parent to choose another word, and then I would address their concern.

[Fun&care]

My son went through this...he was about 4 years old and we never figured out why he did it. Got checked by the doctor and was given an ok. He would go to the washroom every 10-15 mins sometimes, just to get a few drops out. It was weird, and frustrating at times...I would suggest putting them on a schedule. This phased passed within 4-6 weeks if memory serves.