I did similar. I buzzed the wrong flat and had some confused guy say he wasn't expecting anyone, so I checked my txts and realised. I buzzed the right flat, went in and then knocked at the door of the bloke as i had got it wrong again.
Laughing reading that!
I had a bit of a disaster in an Edinburgh hotel, which had a darned key card system,
the lifts were practically opposite the reception desk too.... Luckily there was no CCTV on
the floors where the rooms were, so when a 'gentleman caller' rang to say he was outside,
I would say ok give it 2 minutes then go over to the lift, it's room xyz, then I would fling 'normal'
clothes over my 'work' ones, dash (a push for a big bird) up the corridor to the lift,
call the lift to my floor, when it arrived, press '0' then as soon as I'd done that, dash back
down the corridor to my room to whip the superfluous kit off and stand ready to answer
the door, trying to look calm and collected!
Also one day when typing an AW booking confirmation back to a chap I'd seen a couple
of times, knowing he likes kissing etc I hastily typed 'looking forward to lots of snogging'
However, the good old etch a sketch aka iPad changed whatever i had typed for 'snogging' to
'sniffing' instead.....sadly I only noticed after I had pressed send, d'oh!