On the question of SHAR v Mirage in the Falklands, the ARG aircraft had little or no combat fuel. They went a long way to deliver their weapons. Their only option was to run in, deliver, keep their heads down and run. If they got involved on any kind of fight, they would never have made it home.
The was only one real engagement, admittedly at low level, where the the Argentines tried to mix it in a 3v2 Dagger v SHAR contest which resulted in 3 Daggers being splashed without reply by Messrs Ward and Thomas. However, during the initial engagement phase of that contest, there was some confusion between the Argentine pilots about the location of the SHARs. All three pilots survived thanks to Martin Baker.