Monday through Friday, Ants Pants Cafe is Graduate Hospital’s friendly little neighborhood coffee shop. Weekends, the tiny rear dining room fills up — get there before 10 a.m. for shorter waits — with G-Ho residents hungry for the laid-back brunch. That means pint-glass-sized hot chocolates, large bowls of sweet potato fries, cheddar / bacon / green apple egg scrambles, and the hope-your-stomach-is-bigger-than-your-eyes bacon stack.