Are mowers even a target of thieves anymore with the incredibly cheap prices they attract these days. Would all the bulk and weight be worth it to them to try and flog off a dirty old mower? I think not.
I leave many working mowers unlocked out of the shed due to space because I don't feel it is likely they will get knocked off. Am I misguided?

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!