Grendel attacks Heorot and devours the first warrior he encounters, when he tries to grab the second warrior, Grendel is shocked when the warrior grabs him back with great strenght (by the time the reader discovers this warrior was actually Beowulf).
Teach them to earn money instead of asking. For example in a week they earn $7 at the end of the week you get them to pay 'bills' which are $5 that $5 dollars goes into a private bank account for when your child is older and they keep the other $2 to spend or save up for something