When your LO is sick, how far ahead do you plan on childcare?e.g. he comes home sick on Tuesday night, do you start lining up people for Thursday?
We don't have family around, so if our LO gets sick, we have to either skip work or turn to babysitters. But since you never know when a kid will get sick, this means scrambling at the last minute and playing it by ear.
Last time, I actually found someone able to watch the little guy on a Thursday (which is our toughest day to schedule around). But then he got worse on Wed, and so I had to take him to the Dr. Th afternoon and thus cancelled on our babysitter and stayed home with LO.
This time, the same person agreed to watch the guy on Thursday afternoon, but he got better, and so I plan to take him to daycare tomorrow and had to cancel again. I feel really crappy for doing this twice in a row. But I don't know how else to do it.
What do you do?

Re: babysitter etiquette
BFP #2 5/27/12. EDD 2/1/13. m/c and D&C 6/21/12.
DH or I have always stayed home when J is sick. MIL was going to watch him for us when he got RSV around 4 months old, but he ended up being admitted to the hospital, so I took off work.
I would just explain to your backup sitter what is going on. She probably won't mind. If the sitter is needing some extra cash, can you schedule a Saturday night out and let her watch him?
Thanks. We've mostly stayed home with LO, too, but Thursday afternoons both my DH & I have work responsibilities for whom there aren't really substitutions, and so we have tried to find care for LO when he's sick. I'm glad you don't think it's hugely rude to do this to a back-up sitter.