I wouldn't think too much of it. Most of the time there will be an innocent explanation. Today DH & FIL came to toddler gym, I went off to put my gym membership on hold leaving DH with DD in the class & FIL watching from the bleachers. He can look a bit rough, but wanted to tag along to see his grand daughter. I was a little worried that some of the mums would think he was dodgy!