A regular Albert Einstein

Here is a nephew legend for the following story:
Cole-7 years old
Hayden-4 years old
Kacen-2 years old (almost 3)

My sister was sitting with Kacen helping him say his nightly prayers the other night when one of the other brothers farted in the darkness with them. My sister accused Hayden of being the dealer but Kacen informed her that she was wrong and that Cole was the guilty party. They started a little mother VS 2 year old argument. Cole chimed in to own up to it..."It was me!" My sister asked Kacen how he could tell who it came from just by the sound of it. Hayden answered the question for his little brother quite simply..."He's a genius". He certainly is.