Have woken up grumpy this morning so have a few more.....
People who say/spell, out loud in conversation, OMG or WTF as "oh em gee" or "double-u tee eff". You sound ridiculous don't do it. (bf i'm looking at you)
People who carry golf umbrellas. In central London. At rush hour. I mean ffs how much pavement space does one person need?
People who take one step onto a packed commuter train and then stop dead to look around for a seat/in their handbag when there's another hundred people trying to get on behind them.
People who read whilst walking. Look where you're going damn it!!
When DH comes home from a day of meetings with American colleagues talking in a stupid fake half American accent ("trash" instead of "rubbish", "city" becomes "ciddy")
Monday mornings 

