I have had a few like that this year.
I make sure they all have my numbers so they can call but do they? NO..
They say "ow we wondered what happened" so i just reply, "bad weather stopped play"..
Get a few laughs from that.. .
Funny thing is they say where are you, but are never bothered to pick up the phone and ask, so you have to wonder if they are really that bothered..
I guess they got used to me being on time all the time previously.
Love the ones that dont like it being done in bad weather.. i just miss them out and they say "where have you been", so i reply with "last time i clean was during a spell of iffy weather so i missed you out since you complained so much last time and im only in this area once a month".. goes down well - NOT, but they get the idea its done regular or not at all.
I have some custies who dont mind if its lashing it down, blowing a gale they still want it done regardless. They are always top of my list - look after the people that dont mess you about..