Lift off.

I wish I'd had a faster speed/ASA/ISO at the time.
Just for a change I looked out of the front window and shot a few Coal Tits, there being a shortage of the Blue, and Great varieties.
Had it been a faster speed, in the next shot it was looking straight at me and the next, in whatever you choose to call "Burst mode", would have shown it as a blur 12-18" nearer.  In the then current ISO/speed setting there was, in fact a VERY faint smudge; somewhat akin to maybe a slight smear on the lens.