I just hired four new people to work for me. Two all ready quit because the job was just to hard for them.
Hired 4 more people to join my crew at work last week. 2 all ready quit. I'm bummed. 
user
Dang, that really stinks. Why did they quit so quickly?
assistant
The  work was to physically hard for them. But I still had big hopes for them. 
user
Perhaps you should screen new employees better? Like give them a physical performance test?
assistant
I wish. It's hard to find anyone that is willing to work hard.
user