A recent online survey by USA TODAY, on the practice of tipping a cab driver has generated a huge response. 

The discussion was regarding whether to give the driver of the rental-car airport shuttle something extra in addition to his usual fare. It generated more than 7,350 votes.

More than a third of respondents said they generally tip $1 or more.

A third of the respondents said it depended on their mood. If the driver helped with their bags then they would surely tip, was the most common response. A quarter denied tipping and said that tipping doesn't cross their mind, or shouldn't be expected for a free service.

The post generated a trail of comments, including many that suggested tipping has gotten out of hand.

Some of today's travelers admitted on the post that they are often left with no option than to tip bellmen, doormen, housekeepers and more, which irks them thoroughly.

But tipping is no longer something one does out of sheer will. There are even tip jars at counter-service Starbucks coffee stores that indirectly pressurize customers to tip.

If this continues, how will the tipping trend ever end?

One of the comments was: "How about tipping the produce guy that hauled in a ton of potatoes at the grocery store? I vote no, you just can't tip everyone that does not make a lot of money."