Well, I don't allow them to wash their hands! . . .
I don't allow my kids to wash their hands after using glue either. I have
two sinks, but 22 kids at even two sinks is chaotic. Instead, I have them
rub as well. Even with paint, we use sponges to clean with unless things are
really messy. It works really well and elementary school kids LOVE to clean
the tables with sponges or rags.