I work in a bar, and every 3/4 weeks we get our gas delivery. It always comes during the day when there is only one member of staff on, and they always expect us to help them with the delivery.
They are meant to do it all themselves, we are not meant to touch it until it's in the pub so that any damage etc is still their responsibility until I have signed for it. Also more importantly, it involved being in the cellar for 5/10 mins while the bar is open.
AIBU to tell him to either come before the pub opens or bring someone with him?