The answers)

X: The puppy in the volley-manage has a bowl with water. When he wants me to open the wheelchair, he hits the plate and the water is poured out. I put this bowl on a special support, and he gets it with his teeth and spills it out. When there is no bowl in the volley, he knocks on the door. How will he teach him to always knock and not pour water out?

u: He took you on reflexes, like a Pavlov dog))) Try not to open the door when he spills water)