I award stickers, candy, prizes etc as incentives during my lessons; however, i have 2 students (ages 5 & 6) who are siblings and like to bargain with me constantly. Example: if I give them one candy, they ask for 2. If I say no, they even attempt to reach into my candy stash to help themselves until I move it to where they cannot reach it. Sometimes, they'll play something and think they should deserve a candy for what they did. They get 1 point each lesson if they've practiced everything I've asked according to instruction and when they reach 5 points, they can choose a prize. When these kids are choosing their prize, they ask if I can buy Disney prizes next time instead, since that's what they really like. The parents don't seem to think much of all this but I find it a bit appalling and rude and not sure what to say back to these children.