"Derren, I've got to level with you - I thought your 'Hero at 30,000 feet' show was bad. Really, really bad. "
"But did you?"
"Yes, but did you?"
"Derren, now listen to me. Listen to me carefully. In fact - to help you understand I am going to tap out the letters - you'll be familiar with this technique - your show was S (tap) H (tap) I (tap) T (tap)."