It could be said that snow and dog fouling go together like a hammer and a toilet!
I leave it to the reader/viewer to decide. Is this funny?
I ask because he seems to have been a target. He has a dog...another coincidence? I wonder! Why him? Why has somebody chosen to leave a festering bag of dog excrement outside his door rather than the front door of his neighbour?
If it were a joke, then why isn't the bag on fire?
I think the message is clear; "pick up or prepare for some through the letter box!"