When out and about, there will be climbing options with less than tempting surroundings.
It’s always important to remember, you have the option to come back later. Don’t forget it, and act hastily.
If you see an easily accessible fire escape, but there’s a rowdy bar across the street, wait an hour or two. Don’t leave it to chance.
If there seems to be a large police presence that night, come back tomorrow or next weekend.