[ekianjo]

in japan bikes are stolen once in a while by drunk salarymen who dont want to wamk to go back home. so not 100% safe but fairly safe. also all bikes have a registration number so you eventually find them.

[trillic]

At what size is an island small enough, such that a drunk man riding a bike home is merely seen as borrowing it, and is not a thief?

[piperswe]

I'm not sure what you mean by an "island small enough" - is this metaphor or literal?