There's a cold going around a friend and I both have had it. I basically inform the client at confirmation time, if I feel ok to go ahead (being a bit of a fitness fanatic it feels a bit stupid to complete my workout to then say I'm too sick to do anything else) I'll give them the choice. Most do/will still attend. If however it's bad enough I'm cancelling my workouts(which has to be really bad) then I will cancel my bookings and turn away any new ones.
One thing which gobsmacks me at times has been guys trying to persuade me to see them EVEN after I've said "No" I'm so ill I'm not seeing anyone, having explained I'll be dribbling/snotty/aching/throwing up. Really makes me wonder if folk like to chuck their money away on someone who'd not be able to provide a decent service, or that they're hoping they'll get there and get their way with someone who's in a vulnerable state. Either way it's not a very pleasant thought!
I remember one time when I had tonsilitis (and I mean tonsilitis not a 'sore throat'), having told a guy I why I wasn't available, then going on to ask why couldn't I "just" give him a blow job
I'm never sure about exercise - I cancelled my yoga and zumba last night because I just wasn't up to it, but I thought I might go for a swim later because I hate sitting about doing nothing, then a thing I read online said you shouldn't do too much physical stuff if you weren't well. Bugger it
.
I hate messing people about, but like Strawberry I tend to leave it until the day and then sort it out when people ring to confirm - I can't even talk today because my throat is sore so I've been missing the calls and then texting back (and nobody has wanted to come anyway
) but in the past I've done similar when I've not been feeling too bad, and some have wanted to go ahead, some not. It's certainly a disadvantage of only taking advance bookings, but it can't be helped.
Either way, it's not for an agency to decide. As Ian said, their reaction will be informative if nothing else.