You're right... you're grandma is adorable! and I bet just as sweet! I imagine her short and lively and wanting to feed everyone! 
she is type of playful grandma... Last week was my exam, when i was doing my revision, she just sit beside me and sing some oldies song loudly... I tried not to waste too much time on TV and computer... she was asking me to do more... but not study... I totally can not concerntare for my study... she keep talking to me... haha.. if my result come out badly, i got a reason for my parents... sob sob~~~~~~~~~~