M&M's

When I got home yesterday, I was greeted by Kaylee at the door. She was holding a bowl of M&M's. She said "look mommy, I have M&M's." I said "I see that, why do you have M&M's?" Kaylee said "I cried so daddy gave me M&M's!" I looked at Marcus for some sort of explanation, his side of the story is that Kaylee was crying because she wanted to give Tahoe the oil we pour over his food, and Marcus wouldnt let her (because he only gets it in the mornings). So she started to cry and the M&M's came after that. Who do you believe?