bear with a sore head

Here's last week's bear - having grown all kinds of different colored stripes around its head.  I think that I preferred it in a gestatory state.  It now looks menaced by collage-psychedelia - grumpy and ready to snap, the epitome of a Bear With a Sore Head.  Only ... seemingly, that useful expression isn't common currency over here.  I'm willing to be corrected, but my local informant tells me that she's never heard of it.  The very strange thing about this is that there are many more bears, cross and presumably, on a good day, otherwise, here in the US.  Perhaps the particularly dangerous bear is the dancing variety, cruelly paraded along on his hind legs by some itinerant Bavarian showman?