My 4-year-old son is the most loving, smiling, intelligent, sweetest little boy... and sometimes he can be mischievous, irritable, and explosive. Although he would never hurt someone, he can be a bit of a handful. If someone were patient enough, we could actually be able to have more flexibility in our schedule.
I also have a 3-month-old daughter, who could also be cared for. But moreover looking for someone to care for my son.