Foot-hand-and-mouth virus math:

Pediatrician to tell me to let it play its course and not to take him to day care: ~$200 (haven’t met deductible yet, so, yeah)
Not allowed to go to day care, so emergency sitter for 10 hours daily(including commute): $20×10=$200/day
Estimated length of contagious phase: 3 days
Total:$800
Lost sleep: priceless.

But at least now we know why he wasn’t sleeping so well.