Watching a clueless person wash dishes by hand can be both maddening and entertaining. It can also save you from future grief and expense. --- 
-What is he...

-No,not like..

-You're not icing a cake... How much soap are you gonna...

-What the f-ck

-Where are you going

-------------- I've seen all. I've seen it done quickly and efficiently and I've seen the
hot water running full blast while they run off on some tangent.
I've also watched a relative, dutifully rinse dishes, run them through a totally worn out dish washer and then wash off all the rotten last month's sediment, deposited by a machine that has evolved into a masticator/regurgitator with plugged jets. But this story isn't about electric dishwashers, it's about idiots, so the sink is our laboratory.
If you're taking on a new tenant or hiring a new employee, let them wash a few dishes. It's a quick and dirty IQ test. I have seen soapy dishes returned to the cupboard, a glass that contained only water, sterilized beyond reason and even cracked and broken dishes produced by a guy who couldn't figure out what he was doing wrong. Another guy went through a quarter jug of Palmolive in one go. He wielded that squirter like he was icing a cake. Each dish got individual attention and then it took a gallon of water to rinse off a ton of soap. The person who can't figure out something that looks like
common sense, while doing dishes, will surely cost you much more in other areas.
- This is the guy who is going to run a diesel engine out of fuel, spill fuel on your soil or drive his truck onto the lawn after a heavy rain.
- This is the guy who will leave the
lights on, leave the gate open, or continue washing his truck until the well runs dry.
- He's the one who will crank the heat, but not bother to close doors and windows.
- He'll leave the fridge slightly open, when he squishes your bread hard against it. He'll stand there like a dummy, looking into the freezer for 5 minutes, never noticing that his feet are getting cold.
He will drive you nucking futs. And, he'll waste vast amounts of your
energy.
This guy is to be avoided. Don't hire him and don't let him move in. You will live to regret it.
Luckily, these guys are relatively easy to identify. It's going to cost you some soap and a load of hot water. A small price to pay for such important information.
That wet area between the fridge and stove is more useful than any resume' that I've ever seen.