How can i stop thinking of maggots when trying to eat rice?

I used to love rice soooooo much, but since my dad gave me a box and told me to open it and to my horror it was wriggling with maggots (which he uses for fishing), i cant eat rice without ociating it with maggots. I just keep thinking of them (i know its cos the rice bares a similarity to maggots - especially basmati rice) and then once i have thought about it i cant eat any more!! My dad has scarred me for life!!! Lol how can i get ped this!