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  Sometimes my girls will walk when getting caught in the act. They make a bolt for the door, while peeing at the same time. I think because they know they are in trouble - but it just makes more of a mess for me to clean! 
 However it doesn't really sound like this is the case for your little guy. Have you talked to your vet about this? It could  be a medical issue, maybe he is having problems holding it, or doesn't realize he is going.
 
				__________________Jennifer Leigh
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