I love the M&M's but, When my boys were small I made the mistake of getting them some. What a night mare by the time we got home.
I had M&M's in my car seats melted. The boys would try to dump some into theri hands from the bag and they would spill. M&M's became a snack for outside or in the house at the table.
They advertise "won't melt in yur hands" Yes, they will.