spill guard
When going into a bar or restaurant I have to sit with my back to a wall. I can not stand sitting in the isle. It makes me so nervous that some one will spill something on me or trip over me or something else. I beg the people I’m with to let me sit with my back to the wall. If they don’t let me I become really fidgety and shake and stuff. The only place I can sit that doesn’t have to be against the wall is at the bar, I have no idea why.
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probably because you’re on bar stools instead of sitting down in a position lower than passersby