You know you have studied too hard for structural biology when...
You realise your room is alpha=beta=gamma=90 degrees
You realise your room is not a=b=c
Now you are debating whether your room is tetragonal or orthorhombic
You are trying to find the correlation between peaks from a pattern on your favourite kurta
Your doodling looks too "COSY"
You panic because you couldn't fine the equivalent position for a stray shoe lying on your floor
You make origami models that are perfect geometric shapes likes cubes, just to help yourself visualize the equivalent position of the above mentioned shoe
You find yourself determining the symmetry of your sandwich instead of eating it
You find that the fungus floating in somebody's bottle in the kitchen saddens you because it reminds you of precipitated protein. Some crystals would have been nice :( :( :(
You take a break and have fun by searching for NOESYs for peptides online and try to solve them.
You find there are enough and more instances to make a whole blog post out of sheer insanity of it all :-\