I usually wash for “mezonos” rolls. However, when I was hospitalized (usually after giving birth) the ou slice of bread always irked me. I usually abstained from eating it. And I considered it a shame they weren’t “meikel” on this and made it with juice instead. It’s 1 measly slice per meal, probably not even enough for the brocha netilas yadaim. There’s probably a heter for a chola, but mezonos would have made many patients happier–and fuller.
Airplanes are similar, how do you guys wash?