You are right to stay on the sofa - just watch out for Friday 13th!
At a Meet I was sat on my horse, glass of punch in my hand, horse interested but relaxed, he knew what it was all about.
I don't know what happened but my horse just disappeared from under me. I landed on my feet before sitting down. I do believe that my glass was still half full but Foxhounds being so people living decided the sandwich in my pocket was near enough to the ground to be theirs and I was mobbed, hounds all over me slobbering and thinking it was all a new game.
The Master and whip were laughing to hard to be of any help.