Don Thompson, CEO of McDonald's Corp., found himself on the grill after a 9-year-old girl accused the fast food giant of trying to "trick kids into eating food that isn't good for them."

Hannah Robertson, 9, flew in with her mom from Kelowna, British Columbia, to attend McDonald's annual shareholder meeting Thursday in Oak Brook, Ill., the company's headquarters.

"Something that I don't think is fair is when big companies try to trick kids into eating food that isn't good for them by using toys and cartoon characters," Robertson read during the question and answer part of the meeting. "If parents haven't taught their kids about healthy eating then the kids probably believe that junk food is good for them because it might taste good."

Her mother, Kia, attended the meeting as members of advocacy group Corporate Accountability International, headquartered in Boston and with offices around the world. Kia Robertson started "Today I Ate a Rainbow" in 2009, described as an "interactive