Uber will ban passengers if their rating drops to a certain level. Here's how to make sure you don't get booted.

Many passengers, and probably many of the drivers, want to ride in silence. Still, drivers told Business Insider that contact with riders was one of the few human interactions they might have in a shift, given that they have no boss or office.

"I love to drive, but sometimes when I pick up a customer they don't say hello and just get in and start giving orders," said Dorothy, a driver in the New York City suburbs.

Like many service workers, drivers often bear the brunt of customer service for Uber.

"Do not be rude to the driver," Toni, a driver in New York, said. "Everyone has a bad day, but you are in someone's personal vehicle."

Echoing Toni's point about your ride often being in a driver's personal vehicle, slamming the door can also be a quick way to get under someone's skin.

"Far too many people slam my very light doors," Joe, a driver in Phoenix, said.

Even Uber's CEO agrees. "Don't slam the door," he said in a recent interview.

"There's only one thing that really gets under my skin, even if it really shouldn't, and that's slamming my door," said Frank, a driver in Palm Springs, California. "It's probably less than 1% of passengers who I'll never see again, but it's still one of those things."

Read more: Uber and Lyft drivers reveal the most annoying things that passengers do during rides

Sure, everyone likes the smell of freshly cooked food every now and then, but the odor from your delicious take out can linger well beyond when you exit your Uber ride. The next passenger might not enjoy fried chicken or Chinese take out as much as you, and could give the driver a bad rating for their interesting choice of air freshener scent.

Drugs can be even more dangerous.

The lingering odor of marijuana could cause serious headaches for a driver. If the next passenger reports even the possibility of a driver working while impaired because of the cannabis scent, they could end up booted from the platform for an indefinite amount of time while the company investigates.

"Young people get in my car all the time reeking of marijuana," Wallace, a driver in Connecticut, said. "I don't mind personally — as long as they aren't smoking in the car — but if another passenger so much as complains about the car smelling like weed, it can get me deactivated from the app."

Mahmoud, a driver in Los Angeles, said he's sure to air out the car after to avoid any complications.

"If you smell like weed, I have to air out the car before picking up the next person," he said. "I don't care necessarily, but I have to protect myself. The person who gets in next could complain or say I was driving under the influence."

Uber drivers are paid for the time between arriving at a requested ride and beginning the trip, but it's not much. Since time is money, drivers can get frustrated having to wait for passengers.

"Be ready when you request the ride," Toni said. "Drivers in my market are only paid less than a quarter per minute to wait, which is not a profit since I could be making more on a trip. It sets a negative vibe for the whole ride."

Jeff, a driver in Colorado, summed up the waiting game succinctly: "You hit the button to request the ride. What are you doing?"

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