Back on this, we bake sweet potatoes for about 50 min at 390°. I've never had them boiled, and that way sounds disgusting to me. Baked is the only way I'd eat them.
Just because something isn't allowed, doesn't mean everyone doesn't have one. Bend the rules when you can, I'm going to guess that in most dorms large quantities of alcohol and pot aren't allowed either but they are rampantly in use on campuses everywhere without anyone doing anything about it.