In a saucepan over medium heat, cook the shrimp in the chili oil until opaque and starting to brown. Remove from heat, and season with salt and pepper.
In the bottom of a cylindrical cup or measure, gently pack ½ of the cubed avocado as tightly as you can. Cover with ½ cup rice, and pack down gently, yet firmly.
Invert onto a plate prepared with a bed of greens (optional), then top with a layer of grapefruit, the shrimp, and a drizzle of the balsamic reduction.
Best served immediately, while the shrimp are still hot!
Recipe by The Kitchen Paper at http://c02.ddd.mwp.accessdomain.com/grapefruit-avocado-and-shrimp-salad/