Hi Shygirl,
Thank you for your reply. Firstly, yes Lucky is very easy going, the best natured pig we could wish for. However, a piglet squealing would (as I have seen) set her alarm bells ringing. I do want to have all 3 castrated, if it were just one I might get away with it but by the time number 2 and 3 raised the alarm I think she would have rumbled me.
At the moment I'm thinking of a trial run on Saturday to see how they react .... but a box to carry them in feels a reasonable option?