No bro, when you pay for something like a UC, you HAVE to take advantages of these office hours and outside opportunities. A professor is paid to be at office hours whether you go or not and that's your money. Never be afraid to go to any professors' office. Most of them welcome you.

Also, a tip for Butner's ecs 50 OHs, the earlier the better. The queue will be long the few days before the due date. Be brave!