I introduced Lennie (6 months) and Timmy (6 weeks) a few days ago and it is not going too bad so far. You may have read my other post about Timmy mounting Lennie etc. Now, whenever Timmy goes near Lennie, Lennie makes this low grumbling sound and walks slowly very close to the ground. I noticed a while ago that Lennie was pushing Timmy in the rump with his nose, as if he was shooing him in front of him. Sometimes they sit side by side with no noises, then they circle eachother with Timmy wheeking and Lennie grumbling loudly, it's a "I'm annoyed" type of sound I think! Has anyone elses boars behaved like this and is it good, bad or indifferent?! :-\