Alright everyone cool their jets....the two characters are not serious characters in comparison to others. That being said no one has to fight anyone and if these two enter an area where you are,. you don't have to engage them in combat. I think both LeeRoy and Biddz realize that these two character might not get as much traction in terms of interaction as other characters they may have. 

I personally do not like them either, but they are accepted characters. So if they bother you avoid them, don't interact with them.