It appears he went on a little rampage in the showroom.

We are struggling to make sense of what appears to be yet another brutal racist rampage,

My home is kind of like a showroom.

I think he was on a rampage for everybody, or whoever was in his way.

He hasn't been allowed to come to the showroom because I wanted it to be a surprise.

Without pain, there is no call for anger, much less rampaging.