So, be friends with your pokemon and maybe they'll behave later when they're on higher levels too.

[...Suddenly changing their personality because they go to higher levels and all that? Not fun.]

Most people I've met have been very nice. [...but she doesn't have his personality.] Let's rather make many, many friends. One can never have enough friends. [She'd add 'here', but you know, with her history of people going away from her at home... It really doesn't make much difference here. Except there are sooooo many people to befriend, it's nice.]