Put spaghetti in pot of salted boiling water. Remove when cooked al dente.
Meanwhile, heat olive oil and butter in heavy frying pan. Cook garlic for 2-3 minutes, being careful not to burn it.
Add shrimp, and cook, stirring occasionally until just pink. Add a dash of hot sauce and bread crumbs a little at the time. The consistency should be still wet, not dry with too many breadcrumbs. Mix until heated through.
Place the pasta on the plate and spoon the shrimp mixture over the top. Garnish with parsley and lemon wedges.