How do you handle unwanted friend requests?

[Makk]

It irritates me to have these players I don't know crawl from outta no where and try to friend me. And the ship hoppers!! I hate ship-hoppers!!

I have to play with a person for a good while now in order to friend them, unless they seem like good folk, then they get friend-ed quicker.

I don't mind giving low-levels a chance. I play with them a bit, get to know them - I was a low-level myself once-upon a time, but a chance is the best you got so don't screw it up, right?

However most might have that idiot friend, so they get a free pass for that one once too.