I am just sat in a soft play thing with my 2 boys 4&5yrs) my eldest is a little boisterous to say the least but I keep an eye on him & if he is playing too rough I always make him apologise & sometimes give him time out to cool down.
I didn't see the incident but apparently my eldest grabbed a little by the front of her t shirt. The mother found out, next thing all I could hear was shouting & evil looks in my direction, along the lines of "if I see him do that again I'll deal with him!" I wasn't 100% sure it was my kids but I went over to find out as the daggers were burning into me. She was really rude, pointing out her child had, had a heart operation. I pointed out if she had a problem she should speak to me Luke a grown adult and I will make him apologise. Children will be children in these places and I don't condone it when they go over the top but surly as parents we should model appropriate behaviour & show their kids how to resolve issues in a better way than shouting & balling!!!!!
Sorry for the rant but had to get that out!