Teddy thumps when I put him in his cage after cuddling with him on the couch. Caramel gets offended if you try and pick her up. She also gets offended if you put her bed on the top floor of her condo...duh, that belongs on the first floor. She gets offended if there isn't enough food in her bowl, even though there is!
Bentley gets offended if you startle him, he is quite shy and startles easily. As for Gus, haven't seen him get offended yet.