Out of the mouths of babes

So it finally happened, Brekken said something that I was hoping I could avoid his whole childhood. He actually said two things within a week of each other. On our drive to NE we stopped at Burger King to eat. After getting our seat and I got up to throw something in the garbage. When I got back Brekken said, " Mom I saw a fat guy". Wow was I ever mortified! There was a larger man sitting at the table next to us. I told Brekken that we don't say things like that, but I couldn't even look over at the man. I felt terrible. The next horrifying moment happened at church today. We were sitting in the pew, sacrament meeting had just begun and a very dark skinned black boy came in and sat in the pew in back of us. Can you see where this is going? Well my sweet little Brekken put his hand out to give the boy a high five. The boy clapped his hand and Brekk turned to me and said, "mom his hand is black". My mind is racing, what do I say! " Yes Brekken it is". I was hopping that would be the end of it but then he said, "and his face is black too". Just drop it kid is what I was thinking. He is so sweet, I love this little guy. Our little ones sure do put us in awkward positions don't they. Anyone have any advise the next time he says something that may really offend someone?