[He looked at it in some curiosity, then gingerly sat down, cane held in front of him. Then promptly sank right in without any pretense of dignity.]

Oh, yes, here then? Right. Goodness. I thought zebras were a bit thicker than that. [The last said with a very slight chuckle.]

I'll be fine. You go change. If you can't see me when you get back, do send for a rope.