Firstly, I need to giggle to myself because I am almost positive I am the only parent that does this. 
Secondly, my DH thinks I'm being far to protective, so it's worrying me.
I have an only. He's recently just turned 5. We live on an army estate and my son has recently started playing in our garden with a boy up the road who is 6 years old. The little friends DM doesn't mind her son garden hopping and going around the estate, however, I still refuse to let go of those strings. IMO he's far to young. Anyway, back to the "issue". Why my DS friend comes over to play, I let them play in the garden, but I can't relax. I have to mute the TV so I can hear them and I keep my backdoor open. I think it's because sometimes DS friend can be very bossy and rude to DS. For example, earlier, I heard my DS shout his friends name numberous times, his friend ignored each time, until turning around and screaming 'WHAT' in DS face. It doesn't phase DS, but I've heard quite a bit of this type of behavior from DS friend.
I think I'm just being wary, however DH think it's to over-protective.
Do YTIBU?