Los Angeles: 'Kill Bill' star Uma Thurman says she would have found it 'intolerable' if any of her children were boring.

The 44-year-old, who has daughter Maya, 15, and son Levon, 12, with her former husband Ethan Hawke, and two-year-old Luna with her former partner Arpad Busson, told a magazine that her children are more 'smarter' and 'better behaved' than her.