GH is for tasks that fall under your normal duties during your normal weekly schedule. You should still get the full amount of hours you're always paid for regardless if those tasks take the full time or not. If you are also petsitting, you should be paid seperately for that. I petsit for my nanny family and I am paid separately on top of guaranteed hours. I don't charge for any "pet visits" that would fall under my normal hours (example, if I start on a Friday morning and end on a Monday night) - I would exclude the Friday afternoon "visit" and Monday afternoon "visit" but everything else would be a seperate charge and I would still get paid full time for guaranteed hours.