Newmark's Door

There are some other similar videos on YouTube. A lot of dogs of different breeds and different apparent ages react similarly: barking, jumping, signs of agitation. I'd like a dog psychiatrist to explain this. If the proposed explanation is that the dogs perceive the door stopper as a threat, a few seconds should be enough to convince that isn't. 

Made me laugh.

Doesn't include Hans and Franz, the Church Lady, and Fernando's Hideaway, but otherwise it surely includes some all-time greats. (With videos.)

Made me chuckle.

Will make you smile.

UPDATE: Link corrected. Thanks, Russ.

Made me laugh.

One of the best r/MadeMeSmile entries ever.

One of the the happiest dogs I've ever seen.

I don't think you want to make this guy angry. 

More.

Made me laugh. (Short YouTube.)