An aside concerning the U of A Business building ... my dad taught in the Arts building at the time the new business building was going in. He led the Language Lab, and there was a proposal to put a skywalk between the two buildings.
Most people in the Arts building were horrified at the idea, mostly that it would ruin the Arts building's historic exterior. He wrote many a letter opposing the proposal to the university president. And in more than one, he included photocopies of cockroaches he and his staff caught in the basement to warn "If you put up a bridge, these will end up in your nice new building."