I played Kalista once....
I ended up binding with my jungler because I thought it was the better option imo, so my Thresh told me he was going to AFK and raged at me. Then came back to lane yelling about how he was going to just go feed for binding with the toplaner. He spent 15 minutes raging at me until he watched me throw the jungler halfway across the screen and finally said 'sorry I thought you oathswore toplane, not jungle. You're still stupid for not making me your oathsworn'.
I thought supports didn't want to be stuck with Kalista :| Thresh why would I want to bind to you if you threaten to AFK or Feed before minions spawn? I don't even know.