You'll have clutch/brake fluid leaking out if it's not connected properly.
Hmmm, there is something leaking, but I'd assumed it was engine oil. I noticed it around the bottom of the bolts that hold fix the gearbox housing to the engine. I couldn't tell where it was coming from above though. There was a small puddle on the under tray when I removed it.
I also found that when bleeding the clutch I opened the nipple and my friend put the pedal down to the floor and some fluid came out into my jar. I then closed and he lifted the pedal, we then repeated this but not much more fluid came out. Kind of like the line had a bit of fluid at the end and then a massive amount of air. We bleed the clutch line for ages before the pedal would work properly, after the first bit of fluid had come out it didn't seem like it was really pumping anything through, and the clutch pedal in the car was doing absolutely nothing, it was light as a feather not disengaging the clutch at all.
In the end we managed to get it working again, but I'm not sure why it was like that. Must have had a lot of air in it.
Didn't notice any substantial amount of air in the brake system really when I bled those.