On Jun 6, 1:41 am, "MaryL" -OUT-THE-LITTER
wrote:
That's called misdirected (or redirected) aggression.
http://www.sniksnak.com/cathealth/aggression3.html

Ah yes, I've heard that before and should have known there were
names attributed to it.

Very common reaction amongst animals...and possibly some humans also.