Actually
it's my little piggie GP5 that is the main aggressor (it;s always the Little Ones isn't it?)
We were cuddling them. GP4 wanted a pee, put her in the box.
GP5 nearly leapt clean off my lap,I managed to grab her to save her silly neck, put her in the box. She peed then they circled round , GP5 trying to push GP4 and them sniping.
I couldn't carry her she was like a set of rotating knives but she proceeded to climb over GP6 and GP4 on the walk down to the Pighouse.
This grumpiness (and stinky pee) usually heralds them going into Season. The joy of female animals.
GP6 is
. I reckon she'll sulk in a tunnel