She clipped his claws, then started to doubt herself and had another feel, this time with him 'dangling' so that anything there would drop down. On one side she could feel slightly more fat, and started to wonder if she should just do a small operation, a little incision on that side, under anaesthetic, just to check for any testicular tissue hidden in the fat. Poor woman said that, if she did find anything, it would be the first time, and she began to doubt her whole career, but said she takes pride in her work and wants to make all her animals happy...
She recalled that when she did the castration back in September, she found that one testicle was actually much smaller than it had appeared, being inside a lot of fat, and she had a big dig around to make sure it was all out. The fact that she double-checked at the time makes me (and her) think that it's unlikely anything's been left, and more likely just his nature... And so we've left it that we'll see how he goes, if he calms down, and re-evaluate in a few months if he hasn't - or if he's really bothering Mabel.