I am so glad to hear that Willy (you're in Switzerland, so I wonder, is that "Willy, with a V?") is behaving himself now. I remember how ugly things got, and how upset you were about it. Sounds like Willy's little vacation was just the thing that was needed.
I have a goat that maybe needs the same kind of vacation! This goat was a bottle baby, so she considers me her "Na-a-nna." She also is at the bottom of the pecking order in the pasture (4 goats, a mini mule, 1 enormous mini, assorted poultry.) I got another mini just before Christmas, a palomino weanling filly. Everybody else is perfectly cool with Blondie, except this goat. She takes every possible opportunity to butt Blondie, just for the fun of it, apparently. Fortunately for Blondie, Daisy has no horns! I call my goats my "pointy-headed problem children," but this is a bit more pointy-headedness than I'm willing to put up with. I guess Daisy is just enjoying having someone she can push around, but Blondie is really docile, and I'm afraid she's going to get hurt. Daisy got her cornered last night, and was really letting her have it. I don't know why Blondie wouldn't kick her, she kicks at Betsy and Syd when they chase her. I'm afraid I threw a rock at Daisy (I was on the other side of a fence, and Daisy would have been long gone before I got there!) Daisy acts like she hasn't a clue why Na-a-nna is mad at her, and I have to admit, I'm stumped. I had thought that Spike (a whether, and Top Goat) would be the one I had to watch out for! Spike does have horns, and even Syd the giant mini has to respect him (Betsy, the mini mule, just bites him. He gives her wide berth!!)