With Tristan's host of immuno-suppressed issues have come a series of generalized allergic reactions. Last summer, he broke out into really nasty hives several times. So I got out the fly sheet I had bought on a whim almost 9 years ago because it was on clearance, and he wore it a few times when he seemed particularly bad.
This summer, we thought, well, we'll get out ahead of it! He'll just be one of those horses who wears a fly sheet all summer!
Yeah, you can see where this is going, right?
It's not sensitive, did not open up in any way, etc., but damn it all. Next year, new fly sheet.