When I was in the wagons before my current role, I used to have grease nipples all over my truck that required a squirt now and then. Humour or no humour, 'tis fact!!
Like this shot Hamish, very good!
I refuse to be drawn into these lubricious comments and so will just say that, like the woodland monsters, I really like this and the muted processing you've used. You've chosen a great angle for this and it takes a second before you notice the tyre. See, not a single reference to squirting grease guns, slippery surfaces or oily orifices made! Err, damn...