In reply to Hazelnuts:
Or, if that's not quite horrific enough:
Buffer in a Crack House XS (Australia East Braich, Dinorwic slate quarries)
An infamous Crook / Kay route that was once the only chimnay on slate; it now presents the ultimate evidence of the fact that geological time is NOW! The chimney has opened up and is currently more of a canyon. On first aquaintance the route will have appeared to have fallen down, but this is not the case, it can still be climbed!
The approach is quite harrowing in itself, but here goes: skirt round the outside of 'Where the Green Ants Dream', and traverse across rightwards, treading as lightly as possible.
P1 4b (40m) Ascend the apalling looking cracked pillar and continue into the obvious cleft. Belay at the back of the gully, with a kevlar umbrella (essential to protect the poor belayer).
p2 5b (40m) Bridge up the void to stacked blocks above (with a strong feeling of impending doom); undercut through the blocks with much trepidation to eventually make the final mantel onto steep scree. Surry up this faster than it scurries down (on to your belayer!) and belay on the toilet block above.