Sippy Cup Saga

The sippy cup saga continues...this child will not pick up a sippy cup unless I take both hands and place them around the cup for him. What is the deal??? I think the next step will be to glue his hands to the cup (haa)! After he drinks from it, he so nicely launches it across the room. And yes, we have tried every sippy cup on the market. At least he semi-likes this one, which is the nuby cup with a straw.