This seat may often be bumped by service carts or others passing by due to the awkward configuration transition from 4 to 3 seats. (seatguru.com)
Sole's folding treadmill frame design originated from the demand of hotels for a treadmill as mobile as a room service cart, yet still stable and powerful. (fitnessultimate.com)
On top of things like people chatting and rattling service carts, engine noise levels inside the cabin can be as loud as 85 dB at cruising altitude — that's nearing levels that can be dangerous with extended exposure. (businessinsider.com)