[Lucid:]

Oh my gosh, yeah, that is a nightmare. Hopefully as the carries you play with start to be more experienced and less selfish, they'll realize that it doesn't hurt anything for you to attack minions if you're not actively stealing their farm. I feel your pain, though. One time I was a support Zyra, and my Sivir was really bad. She kept going all-in and dying, and I got two or three kills, all after she had died. She got mad at me for "stealing kills" and went AFK. -_-;;

Usually my style (at least recently) is to hit minions and help me and my carry get level 2 before the other team, and then from there I focus on harassing the enemies, who are now behind in levels, which leaves my carry to farm minions in peace. :D