"It would be interesting to hear from other pilots what silly mistakes like this, they had made. "
Well, wasn't really my mistake, but anyhow:
I called up ground to request VFR radar following. I got a squawk code & was told to taxi to rwy. During my taxi, the dude came back on the radio and said i was squawking wrong code & we got into an arguement. So we changed it. Tip: Dont argue with controller - makes him mad
. Anyhow, 2 min after departure, we contacted tracon, and then that dude got all mad cause we were squawking the wrong code. So he gave us the same code the ground controller game us originally. I then tried to blame it on the ground controller(it was his fault - really
), but he didn't like my excuse and he was mad too