Hi Angie,
Ah well, nice to see Henry's cheeky little face again. He sounds like Jet who will also jump on your feet as you climb the stairs. He likes to dash out from under the bed as well, just as you've taken your slippers off...the little git!! ha ha.
It's just his way of having fun, no malice intended...it's a feet thing.
I hope young Henry finds another home again soon. I can understand why an old lady wouldn't want that though...he might have inflicted some real damage on thin skin, or worse caused her to fall down the stairs.
Good luck and lots of love to the little rascal,
Roz