DS (age 8, year 4) had a friend over today (same age). The boys were getting a bit over excited as can be expected, and acting a bit silly at times (bit of cheek from ds), but generally ok.
Then, just as his friend's mum was coming over to pick up his friend, I walked past ds' room and he was stark naked. His friend was fully clothed and giggling, DS was prancing around like a mad man. I was quite surprised and had a bit of a go at DS and ordered him to put his clothes back on. DS is normally a bit shy and doesn't even let anyone see him naked even when undressing in the communal rooms at swimming!
I think it was my reaction that made him act a bit guilty and immediately sorry and compliant, and trying to be extra nice to me afterwards. Although it kept making me feel that he had something to hide...but I could hear they were messing about, laughing noisily, definitely nothing secretive was going on.
Was IBU and overreacting? Should I have just laughed it off? I must admit I instinctively felt quite cross about it. I asked DS why he stripped off and he kept saying 'I don't know' until eventually he said he had done it as a joke. So I told him, ok, but he can't just go flashing his privates as they're not for everyone to see, although if he is getting changed with friends (i.e.swimming) then that would be acceptable.