Clutch Fluid Disappeared

Came home from work this evening, cut the lawns, sorted the food out, ate outside with my darling wife, commented that it would be a lovely time for a ride out to which came the reply "I'm not in the mood, why don't you go out on the Super Duke" (as a couple we go out on the 1050 Sprint), I don't need telling twice .
So, I was all set to go for a blast with permission, to be honest I've not been out for 3 weeks or so with being on holiday and work etc so I was ready for it, when I went in the garage and noticed the clutch reservoir was empty, no lever pressure, no clutch . The slave cylinder was a little damp but apart from that there wasn't a lot of liquid on the floor, unfortunately the bike was parked over a piece of rag so that could have soaked up some as well but definitely no real evidence of a leak.
The bike is an 2006 model that was registered late 2007, is this possibly an occurrence of the original fault in the early bikes or is it just a general issue with standard parts and its just "one of those things"?
I've done the searches and read through some old posts regarding slave cylinders, it looks like there were a few failures and it's not such a pain in the ass to do, are the seals still available or am I going to struggle to find the parts?

On the plus side I still went for a ride out but on the Triumph, it wasn't the same though to be honest, I pushed it like I would the Super Duke and it just doesn't give you as much confidence, still I managed to blow the cobwebs away, just not as many

Slave cylinder shot. pull it off and you see the oil leaking out.
Don't bother fixing it as they are shit. Get an Oberon or so and fix it for ever.

And it's not brake fluid!

Would I need both these parts ?

I have a a OEM clutch slave in my garage clearout sale going. £25 inc P&P

Comrade: A small tip... Make sure that when you reassemble everything that you make sure the banjo is nipped up. It is easy to slightly loosen it as you undo the bleed screw. It can be loose enough to just lose a little fluid over time.

And bleed from the bottom up.

Halfrauds it is then for the LHM then, thanks for all the advice, I'll report back once the parts have arrived and I've done the job.

Well the parts turned up at 13.45, I'm working from home so I finished up the emails etc that were urgent and went in the garage at 14.30, got the tools, bleed pipe, fluid etc together and cracked on with it. 35 minutes later I've got a clutch again Tidied up (one thing is bothering me though, I can't find one of the old copper washers, must have rolled quite a distance when it fell off, there's definitely only two on the banjo now), cleaned all the tools, put everything back in it's place, washed up and took a picture of the good work so happy days. Back at work (*cough*)now so I thought I'd post the picture, looking forward to getting out again later. Thanks for all the advice, pointers etc.

I had an 08 Buell 1125r and the clutch slave cylinder would weep too. Replaced it with the EBR one and it was fixed. One could use an Oberon one as well. They seemed to have fixed it on the 09 bikes. Weird how this happens but I guess that's part of it.

It doesn't take much at all but you really want to flush it through properly so unless you're particularly anal about what you put in I'd go for You will have plenty then even if you bugger it up, at £12.99 for a litre you can't go wrong, it might not be in the same packaging as the one on the website, the one I have isn't, just plain black with green writing on the label.