(Strip Number 4503, Original Publication Date, 27 May 1985)
Panel 1: As John struggles as he carries a heavy tree into the yard, he tells himself that the thing must weigh at least one hundred pounds.
Panel 2: After planting it, he reads the instructions ("Untie sacking, bury root ball completely, water well...") in order to check that he's done everything right.
Panel 3: He shows off his hard work to Elly and asks her if it looks okay; she grudgingly admits that it does.
Panel 4: When she points at a different spot and tells him that's where she wanted the thing to go, he looks all gobsmacked.
Summary: This is because he either has to dig the thing up again and endure noise about never being listened to by someone who never said anything or leave it where it is and get the same argument. No wonder Mike can't make good-faith mistakes. If John can't, his kids can't either.