"Don't let him jump up on people"
"Don't let him climbu upstairs"
"Don't let him jump on the furniture", all of course perfectly reasonable under the circumstnaces, but trying to get an 18week puppy not to jump up when he sees us is a nightmare.
last night he somehow got out of his (locked) crate and came upstairs - thankfully not fast becasue he was hindered due to teh buster collar.