It starts out like what is in the videos then almost always intensifies and often turns into a fight. Dorie gets hyper and tries to get underneath Luna and nip Luna's jowls then Luna starts play-snapping and if Dorie gets hurt just a little bit she blames it on Luna then Luna reacts in a...
In my opinion, the German types are much prettier than the American Boxers. Their heads are more Mastiff-shaped while the American Boxer shape reminds me of pit bull puppies.
That is another Boxer trait. They are huge lap dogs. They love curling up into the tiniest places to sleep. Mine would stuff all 70 pounds of himself into my Boston Terrier's crate to sleep.
Oh yeah, lots of people think a big barking Boxer is very scary. Baxter came in handy with unwanted visitors. :D But he was very friendly with invited visitors.