A determines pot roast, B says, "hell yeah."
A selects a modestly priced roast with marbling, looking ahead to tender meat. B says, given the lower price compare to rump or shoulder roast, "hell yeah."
A sees in the kitchen 2 Irish potatoes, a bag of baby carrots, a huge sweet yellow onion, and some red wine. Perfect for pot roast. B says, "hell yeah."
B reminds A that B has done the dinner prep for a week.
A remembers 5 days.