When I was in school, I used to ask a lot of questions. One day I asked Ms. Doris, our English teacher, "Why do we ignore some letters 'H' like in hour, honest, honor, etc?"
Ms. Doris replied, "We are not ignoring them. They are considered silent."
During the lunch break, Ms. Doris gave me her packed lunch & asked me to heat it in the cafeteria. I ate all the food and returned her an empty container.
Ms. Doris asked me, "What happened? I told you to go and HEAT my food & you are returning me an empty container?"
"I'm sorry, Ms. Doris, I thought the 'H' was silent."
A man arrives at the repair shop to pick-up his watch.
Clerk: "I haven't finished repairing it yet. just give me a few more minutes.
Man: "Sure, no problem."
The man goes and stands right next to the clerk, who notices him but continues working. After a while, he can't take it anymore.
Clerk: "Why are you sticking so close to me?"
Man: "I'm only doing what the sign outside your door says."
Clerk: "And what is that, may I ask?"
Man: "It says, 'Watch Repairs.'"