Mouse dead in trap found in front garden

That's come from a neighbour either side, hasn't it? I'm struggling to think of a more mundane explanation.

Fox? He'd have eaten the mouse surely?

Also the trap and the mouse were bone dry and the rain has been biblical since yesterday. That's been moved out of a dry space and then put in my garden?

Anyone else had similar and it turned out not to be neighbours playing silly buggers?