During the shot in which Salacius Crumb (the small, annoying, rat-like thing that sits with Jabba in his palace) is chewing off C-3PO’s eye, Anthony Daniels had a panic attack while in the C-3PO suit. While filming, he didn’t actually say his lines (all his lines were dubbed in post-production anyway), but repeated “Get me up. Get me up.” over and over. This take is the take used in the final film.