Distribution of Ketchup on chips - if you order chips for takeaway (open), and apply the ketchup in the shop, the result is a top layer heavily saturated in ketchup, the next layer perhaps optimal, but the rest with little ketchup left for them.
Beans/peas - the temptaion can be to empty the pan onto the plate, which ends up flooding the plate with sauce/pea juice. Best to strain them.