As an SLF I have had three GAs. First was into LGW from MAN when the cabin wan't secure (the trolley wasn't away in time); the second was Jet2 into TLV (captain mentioned an unstable approach) and the third was when MAN closed for snow when we were about 20 seconds from landing and off we went to BHX.
The first two suprised me, the last one didn't. I flew in from Larnaca and before taking off had already had a call from my secretary telling me I wouldn't be landing. Was surprised they even bothered to take off.