I resign...

So when is a resignation not a resignation?  First it was Nigel Farage who, having failed to win the seat of South Thanet at the last general election, resigned as leader of UKIP.  But then it seems his resignation was not accepted by the party and so he remains leader even though he's resigned.  And now we have Sepp Blatter who a few weeks back stated he had decided to "lay down [his] mandate" as head of FIFA and said he would "not be a candidate" for re-election.  But now he is saying that that did not amount to a resignation and that he remains head of FIFA until such time as there is a re-election contest - which, as head of the organisation he will organise and control the timing of. Clever, no??