A/C unit rattled in one room while running, so i moved to another room. It rattled too. Oh well, got some sleep anyway. Went to work the next day then returned to my room later that day to find a gift on my table - a half empty bottle of liquor. I thought this was especially bizarre because i had a do not disturb sign on my door. Asked front desk about the bottle and their reply was basically, "duh, i dunno."