So, let's get one thing straight. Cyprus is neither a bail-out, nor is it a bail-in. Either metaphor fails, and the tortured extension of the metaphor to 'bail-in' illustrates the poor grasp of language by a) the people who came up with it and b) the people (mostly journalists) who gaily leapt on it.
The first deployment of the metaphor was in relation to the 'bail-out' of Greece, then Ireland and others. The metaphor was OK - like a boat in trouble, taking on water, the troika were providing assistance in relieving the problem. In cash terms however it was a reversal - the cash was coming in to the country, while the water would have been hurled out of the boat. Nevertheless, the assistance (in terms of muscle for the bailing, so to speak) was inbound, so the metaphor was sustainable.