Well that's a funny story! Sorry it happened to you.
Thursday I mowed for a lady whose yard is on such an incline I could hardly believe it when she said "the previous mower got his zero turn up there." I mowed it with a push mower and I'm seriously considering calling her and quitting.
But given how fat most everyone in my country and state are and how fat most of the local landscapers are, I can see them taking a zero turn everywhere.
Glad you got the water out and prevented damage.