Yoda's back is probably killing him after going all Sonic The Hedgehog on Duke Dooku, not to mention saving Obi Wan and Anakin from being crushed, so he gets a pass from me.
Obi Wan using The Force to close a compartment door in ROTS mere inches away from him is pushing it though. It's also a tad hypocritical, as Anakin gets scolded for those kinds of parlor tricks, when he's not putting the moves on a hot young senator from Naboo.