Heather Mills: Out on a Limb

3/29/2007 4:06 PM PDT BY TMZ STAFF
Armed with two artificial legs in hand, prosthetic pirouetter Heather Mills ankled away from her busy "Dancing with the Stars" training to visit a Beverly Hills clinic, although it's unknown who's footing the bill.

It's nice to see that if the pedestrian soon-to-be-ex Mrs. Paul McCartney happens to lose her fake appendage while doing the Cha Cha, she has ample backup.

Break a leg, girl!