Mother: "How was school today, Patrick?"
Patrick: "It was really great mum! Today we made explosives!"
Mother: "Ooh, they do very fancy stuff with you these days. And what will you do at school tomorrow?"
Patrick: "What school?"
*****
Doctor: “I’ve found a great new drug that can help you with your sleeping problem.”
Patient: “Great, how often do I have to take it?”
Doctor: “Every two hours.”
    Compiled from the internet