3 things that make you instantly dislike someone

[Disastrous]

Fair enough. I wouldn't find that annoying at all though, I'd at least would be too unimportant for me to base a dislike of someone on.

If somebody came at me with a 'better' way to work, up simply not listen and insist/shout over them that my was better, thus defusing the situation without causing myself annoyance.

As a general rule, I find arrogant people far more entertaining to be around than quiet, don't-like-to-brag types.

[MadOne]

GT03ROB said:

1) People that eat or drink in a supermarket before they've paid
2) People that say "snack" or "veggies", the words are like nails down a blackboard to me.
3) People who on first meeting them, proceed to tell you how wonderful they are.

The first one here I can relate to. I have a friend who does this. While walking round the supermarket one day she lifted a bar of chocolate and got tore into it while walking round the shop then she started on crisps. I was mortified and told her she was unreal. I then waited outside on her while she did the rest of her shopping.