At first I thought mi abuela called me a RAT

But then I looked up the world 'ratón' and saw it meant 'mouse' :) 'Rata' is the word for rat.

CONTEXT?

I was eating lunch, and mi abuela (LIKE ALWAYS) gives me a slice of cheese. I give her a big smile and a GRACIAS and she says 'Sé que te gusta!' And I laugh and say Sí, sí! And then she contintues, 'como un ratón!' heheheheh

ESA SOY YO!