Every once in a while I’ll notice my mare standing like this with her hind legs, where she has her fetlocks not completely “locked”. She will sometimes even rest one hind leg and do this with the other. She has no problem putting her fetlocks back into the normal position if I ask her to shift her weight. Has anyone seen this before? Something to be concerned about? No soundness issues, no injuries, she’s 6, had her since she was a yearling and I’ve seen it on occasion throughout the years, so not like she started doing it now. And again, very sporadic.