Trial and Error

“This bloody thing is stupid. I can’t make any sense of it!”
“Did you try reading the manual?”
*eye-roll* “Don’t be daft. That’s for idiots. I’ll just keep pressing buttons and pushing knobs until something happens.”
“Is it plugged in?”
“Of course it is! I’m not a complete numpty!”
“What’s that red flashing light for? Is it supposed to do that?”
“I don’t know, but I think I’m on to something. Now, if I press this button here ...”
“Is that a good idea?” *Loud grinding sound* “Oh, I didn’t like the sound of that!”
“I think it must be faulty!”