Why won't mine boot?

so one morning i went to play some music on my tablet and i then decided to use another device, i only have one good usb cable and its the one that belongs to my tablet, so i turned my tablet off and then went to listen to music on my iPod. After a couple of days i started to plug in my tablet and as usual it charged normaly with its little animation thing, so i left if for the night. In the morning i unplugged it and went to turn it on and it wouldnt do anything, it wont boot, it wont reset, its just stuck there ticking me off with its "broken-ness". what do i do? i really need help with this, this is my 2nd tablet after the ASUS MemoPad i had but then the screen cracked from my fat cat knocking it off the table onto the floor. Please help :(