Place whole shrimp, keep shells on, in single layer in oven-proof dish. Drizzle olive oil on top of shrimp. Pepper shrimp until they are black; when you think you have enough pepper, add more. Add lots of salt, lemon juice, Tabasco and Lea & Perrin's. Remember you are seasoning through the shells. Cut up butter on top of shrimp and broil until shrimp are cooked, 15 to 20 minutes. Be sure and taste to see if they are done. Serve these with newspaper on the table and lots of napkins. Have French bread to sop up the oil and encourage guests to eat the shells, as well, if river shrimp are used. With cold beer and green salad, you have the makings of a great informal party. Base the amount of shrimp on the number of guests.