From "Gilligan's Island: You've Been Disconnected (#2.17)"
[Gilligan & Skipper are collecting natural gas. Ginger arrives and finds Gilligan on the ground, out cold
] What happened to Gilligan?
Jonas 'The Skipper' Grumby
Oh, I told him there was gas in the bottle, but he didn't believe me, so he uncorked the bottle and took a big sniff...
[the Skipper duplicates these actions, then gets a really goofy expression on his face and starts dancing