Good question. If it's locked up... well, it's locked up. Even if it's there for a month. Maybe the owner went for a pint, slipped in the loo, broke his collar bone and was taken to the hospital? :-)
If it's not locked, maybe someone can lock it and leave a note to the owner? If it's a dark industrial type of alleyway - it was possibly stolen and then abandoned. If there are some dwellings around, you can knock few doors and ask politely about the bike.
Good question. If it's locked up... well, it's locked up. Even if it's there for a month. Maybe the owner went for a pint, slipped in the loo, broke his collar bone and was taken to the hospital? :-)
If it's not locked, maybe someone can lock it and leave a note to the owner? If it's a dark industrial type of alleyway - it was possibly stolen and then abandoned. If there are some dwellings around, you can knock few doors and ask politely about the bike.