Well, this is one way to try and deter thieves.
The sign was stuck up in the window of a New York toy shop. Among other things, the shop had a number of very alluring and rather splendid remote controlled cars.
A visit to this particular toy shop was featured in the television programme: ‘Last Chance Lawyer, NYC.’ The criminal defence attorney, Howard Greenberg, who ‘stars’ in this programme, drew our attention to the sign.
I suppose New York does have a rather distinct culture. And, in a sense, this sign is the perfect riposte to the cliche: ‘a picture is worth a thousand words.’ This sign has just six words – and that’s the long and the short of it.
Post script: As the cultural commentator P.J. Villiers remarks, the sign has ‘neither finesse nor irony.’ (But it does have sellotape.)
Go Ask Alice 
This lacks both irony and finesse. Oh, for Thurber once again!