"Hopefully you have an interesting night on call."
"Why would you say such a horrible thing to me ಠ_ಠ"
I think I might do poorly on this rotation.
It's really not clear here who said what.Why wouldn't you want an interesting night on call? You would prefer to sleep only and get no experience? I think what he was offering was a compliment, a legitimate hope that you would do good work, learn something, and be involved.
I probably would have said thanks...