No, probably not. If he wanted to challenge you, he would probably howl, snarl, and attempt to growl. If you mean challenge as in challenge in a game of tug of war or something, still no. He would bark at you, and be basically asking for attention.
One simple way is to determine the end date of those goals. Decide by when do you want to complete those goals. If the goals are more about learning concepts...
He's either confused and doesn't know what he wants to do, or he's leading you on until he "finds a better deal," so to speak. Either way, tell him you...
You can temporarily change the color of a leather shoe with a few coatings of shoe polish. Opt for a liquid polish rather than cream, since liquid polishes give more...
Dogs howl at night for different reasons. This includes feeling lonely, being disorientated in the dark, needing the toilet, reacting to noises they hear around them, and responding to a...
