Discharge - contracts can be frustrated by…
Impossibility (Taylor v Caldwell)
Illegality (Fibrosa Spolka v Fairbairn)
Commercial sterility (Krell v Henry)
Possible that the loss of members of staff could be classed as unforeseeable events which make a performance impossible.
Robinson v Davison - frustrated when the pianist was too ill to perform.
Nickoll and Knight v Ashton Edridge & Co - naming the exact ship = frustrated, impossible for this ship to carry the cargo within the agreed period