Not the best start this week. Thought I should really check the tyre pressures this morning, so gave them a squeeze and all seemed good. Then convinced myself to do it properly as I hadn't topped them up for a couple of weeks.
Unscrewed the dust cap, which came out nice and easily, along with the valve core, and all of the air. Bugger.
Finally managed to track down some pliers and refitted it, bending the stem in the process.
Still, air reapplied and it got me in. Feel suspiciously spongy now though, I HATE slime tubes!!!