Haha! Breed standard . . . haha!
My giant dog Zeke loves the laser pointer. When he was younger I would try to tire him out with it. (Lord knows that the other methods I tried, like letting him pull me on my skateboard, turned out not to work so well . . .) One day I noticed long red stripes on the carpet. They were from his bleeding, carpet-burned pads from stopping at the ends of the room. He didn't notice.
We tore out all the carpet, and the first time I played with him after, he went careening into the TV stand and sliding glass door. I laughed so hard I nearly peed my pants.
These days, though, now that he's going on 7 and not 3, he doesn't chase it so feverishly anymore. He still chases, but only for a short time before he decides he's too tired for that. I should have gotten video before.