My lovely long haired girl pig has died 
I posted a thread a few months back about her, she'd developed a lump under one of her teats. After much agonising and consideration and chats with our vet, pet boarding lady (hugely experienced pig owner) and some of the lovely posters on here, we decided against surgery. Too invasive, lump in a tricky place, chances of success fairly small, chances of significant pain and distress for pig fairly large etc etc. Decided to keep an eye on things and monitor her and see how things went.
On the plus side: she's had four happy months with us since that decision, hasn't seemed in any pain or discomfort whatsoever, and has continued to eat with gusto.
On the negative side: the lump kept growing. It never really seemed to impede her mobility but in the last couple of weeks I knew we were on borrowed time.
The crunch came last night when I got her out for a cuddle and check and realised the skin over her lump was effectively breaking down. I booked her the earliest vet appointment I could get, but by the time I'd got there the lump was almost totally necrotic - the sudden deterioration was really quite scary - and the decision to put her to sleep a complete no brainer : it had to be done.
Torn now between guilt (she still seemed quite happy which sounds ludicrous but she honestly was) and relief that it never got to the point of her suffering.
We are going to miss her 