Hishi's not really fat here, just weight conscious; tags switched. Trainer may need to have Hishi dragged to the pool. Kicking and screaming, if necessary. With other umas posted at the exits (including... "unconventional" exits) to drag her back in.
In other news, why is it so amusing when text effects mirror the action of a comic?
Alanis, killed by a horse girl named Hishi Miracle