Two rear entrances? Sounds like an episode of McCoist & MacAuley.
Says a lot about the last time I went shopping in Aberdeen, cos the last time I went through the Trinity Centre, there were three entrances ... nae counting the "thru-the-shop" entrances. There was always Bridge Street, Union Street & Guild Street.
And for facts sake, never listen to Grumpian TV! When the shopping centre opened back in the mid-80s, I mind it being on the tele, with Grumpian's own John Duncanson announcing it was called the Trinity Centre cos of the three entrances. Last time I watch the news, pfff!