I think I'd have done the same as you mollie - if you're only 5 minutes away then you can go back so easily after the foot-scraping's finished [yuk emoticon].
Maybe if you do it every time someone else is there, then I can understand why she gets upset, because it might appear to her that you're snubbing her friends. Or maybe she just loves to have several people at once visiting her, creating a bit of a buzz in her otherwise quiet life.
But I would definitely draw the line at watching her chiropody treatment 
Unlocking the Zen: A Guide to Block Blast
Any Rain Anywhere, Or Are We In A 1976 Timewarp?
The early release scheme it's a gimmick and helps no-one but criminals. Just build more prisons.


My Mum is the only person who sends a text to our land line. She's on holiday in Lanzarote, so I'm expecting one any day now to tell me what the weather is like over there. She sometimes realises what's she's done and sends another to my mobile, but usually I just tell her when she's back home. It's a bit of a family joke now and all said with great fondness. Never had a message about anything as exciting the lump on your shoulder though! Bless. 
