We never yell, hit, tap on nose, intimidate or anything like that.
First and foremost, we like use positive reinforcement to teach them things. But if they do something wrong, we just use a firm normal-voice 'no', and we might put our hands on their body to hold them still...just to get their attention/focus off of whatever it is they have too much focus on. As in, let's say Marcel was trying to boss Wylie around on our bed (bc Marcel thinks he OWNS our bed) and was going to go after him a bit - we would say no, grab Marcel and hold him still so that he's prevented from moving forward with his evil little plan

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