"Grab a Bunch of Food"

The cherry blossoms are officially in full bloom, and people are marking off spots in parks all over Japan to take part in the cherry blossom viewing event called "hanami". We don't know if we will have a hanami this year, but we are enjoying the cherry blossoms.
Both of Yoko's parents retired last week from teaching JR high school after 35+ years of teaching. They both are really looking forward to what they will get to do now. Yoko's dad will be taking gardening classes at a community college, oil painting and working on ballroom dance (his hobbies). Yoko's mom will be helping a friend who is having a baby this month and working on getting her parents house sold.
The last day that Yoko's mom worked, the three of us went out to eat to celebrate. He had the buffet lunch at the California Restaurant at the Radisson Hotel. Now this is a nice hotel and the restaurant uses cloth napkins, the kind of place you wouldn't expect to hear from the waitress "grab a bunch of food". Much to our surprise that is what we heard. The buffet was closing and the waitress said to Erik in English (all three of us were at the table), "The buffet is ending in a few minutes, go ahead and grab a bunch of food." Erik didn't say anything back to her (partly because he was surprised by the choice of words and the fact that she spoke to him only) but looked at her like she had 5 heads. There was a moment of awkward silence then she repeated herself to Yoko and her mom in polite Japanese. Since then, we have enjoyed telling each other to "grab a bunch of food".