iPad Air glass break

-anyone else experience any broken glass? I ask because i had the iPad Air for about 31.5 hours, only used it for about 20 minutes other than the Apple representative that set it up fo rme in the stor, and the glass shattered at the thumb / home button area. wonder if thinner = more glass breakage. still have 3 others in household with no damage and two of those belong to my twin 9 years old boys and other to my wife for business needs. This is my first iPad. Genius bar said it will be at least a week for replacement even though they have new ones in store. With my Apple care it will cost about $49. I realize the Genius doesn't know me from the next person, but in a leather case (from wifes ipad 3) but it wasnt hit, banged, dropped. Disappointed.😟