The difference between the UK and the US version of Kitchen Nightmares is extreme. The US cut puts so much emphasis on aggression that there isn't room for anything else.
Another thing based on UK Kitchen Nightmares is you really only see the hostile side come out when he's put into a situation where the other person is hostile. If the person genuinely wants to learn and try to save their business, he's nothing but helpful. There are episodes of the UK show where they're basically just wholesome all around.
I just did a quick search and found this [1] It's the exact same 1 minute scene from UK and US. The UK is constructive criticism and wholesome banter. The US version cuts the playful banter as if he's just being mean, adds music and a narrator of doom, cuts his concern about her going home to her daughter, and her "very good day" quote is way out of context.