Let me tell ya bout shrimp. Well this is what a shrimp vendor and buyer told me years ago. A shrimp may go bad (in our eyes) stink, smell etc. but they will not make you sick like bad crabs or fish. You can eat em raw, or rotten but wont make you sick. Ya know I never tried it but I have seen folks eat them raw but never rotten whatever that is. 7 Days in a cooler I dont think they are bad if the cooler was cool enough and the shrimp were not in a big wad as to not allow cooling to all the shrimmp. You would be surprised how l ong they stay in stores just laying on ice.