Last time I was in Costco, I bought a two pack of party size Cheetos. The super crunchy kind. My French relatives were in town and packing a picnic for the trip back home, so I offered them a bag to try out. Here's what happened:
(What's reasonable) Oh, thank you! We'll give those a try. They must be good if you like them so much. Gosh, I noticed that you've given us one of only two bags, and it looks like they came straight over from the USA. We are extra thankful. We'll be sure to let you know how we liked them.
(What actually happened) Ugh, I'm sure this will taste horrible. Look at the ingredients, there's no cheese in here. Look at how much MSG there is.
I held my tongue and politely suggested that my feelings would not be hurt if they thought it wasn't what they wanted and didn't want to take it. Surprisingly, they decided to grudgingly accept the bag after talking some more sh*t.
Grrrr
Guests and fish get very old after 3 days.