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.