An automatic sink is a sink fitted in a public restroom. It uses a motion-sensing valve to detect the user's hands moving beneath the faucet. It then turns the water on. It turns the water off when the user moves his or her hands from under the faucet. 

(Am I the only person who has to wave their hands back and forth under the faucet or in front of the motion-sensor 100 times before any water comes out of an automatic sink?  No offense, give me a regular sink or wash basin anyday!) 

An automatic toilet is a toilet fitted in a public restroom. It uses a motion-sensing valve to detect the user's bottom moving above the seat. It then flushes when the user moves his or her bottom away from the seat.

(Am I the only person whose automatic toilet won't flush under any circumstances when there is another person waiting to use it right after me?  No offense, give me a regular toilet or coffee can anyday!) 

I have to say that in some cases, modern technology isn't necessarily a good thing but rather an annoying and time-consuming thing!