I do it but I tell them the days that are available and I have a minimum in effect. This way it makes it worthwhile for both of us. It gives there little one a chance to socialize 2 times a week for 3-4 hours. I ask that there child not come for nap time as it would off set our routine. I have accepted her at odd times as an exception but only during daycare hours and for an additional fee of course!