I certainly think it's important to attend open houses to experience the atmosphere, and meet professors, staff, current students and other prospective students.
My problem is that I've already registered to attend one open house, and I discovered yesterday that another school is hosting an open house on the same day! They're in close proximity to each other, so I could potentially attend both, but I feel like it'd be rude to show up late and/or leave in a rush (and would they know the other school's schedule and know/care where I was going/coming from??). I'm thinking of proceeding as planned, and instead, I'll make an appointment to visit the second school on another day. Do schools usually host more than one OH per semester?
Am I overthinking it all? I appreciate your help!