Tw of my kids went down to my Moms for the weekend... Rachel (14) and Samuel (10). They were getting ready for church Easter morning, and Rachel was helping Sam get ready. She thought what she was putting on his toothbrush was toothpaste. Turned out it was grandma's denture adhesive.
A couple minutes later, Sam comes out of the bathroom mubbling something like "I can't get my mouth open!"
She glued his mouth shut!
A little steam and hot water, and they got the situation resolved.
Knowing Rachel (and that she takes after her old man).... I think she did it on purpose!