Unruly kids are the worst, I have five kids and I don't let them run around like little demons, I just wish parents would get some control. I recently took my kids to a fast food restaurant and a less then two year old came up to me wanting me to hold her while her mother watched smiling from their table, hello I am a stranger, why people find such things acceptable is beyond me.
Talking loudly on cell phones is a huge annoyance for me it is especially bad in waiting rooms because I choose to read while I am waiting which is hard to do when someone is talking loudly.