How would you handle catching an employee and a customer in a stall together?
I own a small cafe and today, one of my employees came in on her day off after one of her friends (a regular customer) called her while she was there and asked her to meet. My employee came in with food from another establishment, went to her friend to chat for a minute then proceeded to the bathroom. Her friend followed about 30 seconds later. I saw none of this happening because I was busy cooking on the line. They were in the bathroom in the same stall for about 6 minutes. I had gone in to use the bathroom and was in there for about a minute, walked out of the stall and washed my hands. As I was washing I realized there were 2 voices in the other stall at which point one person said "are you almost done?" I thought it was a mom and kid at first until the stall door opened and out came my employee and her friend, acting nervous. My employee said "hi" to which I responded "that was really weird" and her friend looked horrified. Then they left right after me. The entire thing was shady AF.
My question is, how do I handle this? I did text my employee that I don't know what was happening in that stall but it cannot happen again. Obviously I didn't actually *see* anything nefarious because they were in the stall together but the entire thing was bizarre and would have made anyone uncomfortable who happened to be there. The friend works with kids locally at an after school program (she was in uniform) so I called her manager to let them know about her bizarre behavior considering she works with kids and my kids are part of that program.
Background: the employee is often late to work, calls out a lot and has actually passed out while on the clock due to not eating breakfast. Her employment has been on the chopping block for a while now. I trust her even less after this weird behavior.