Upset Sponsors

<p>Okay, so, problem. I'm president of one club and relatively important in two others, and all three have an event on the same day. I went with particiating in the latter two - I could do them both, rather than going out of town for the former - but now the sponsor's mildly ****ed at me for "backing out" when I had the dates for the other events nearly a month beforehand. I have the same issue when I have SATs on weekends, etc. So has anyone else experienced this? What's the best way to deal with conflicts (aside from cloning) while maintaining my status in each of the things? I could rotate, but the fact is that I really prefer some extracurriculars to others, which makes things difficult...</p>

<p>I hope that paragraph wasn't terribly confusing. Advice is welcome.</p>