1. The waiter helping the lady at the next table to work her laptop.
2. The coffee pot at work tends to be ignored once it's empty -- no-one likes cleaning out the grounds. I thought I'd better do it while I was making a round of teas. As I put my hand in, expecting the horrid feeling of coffee grounds in my fingernails. Instead, the most obvious sensation was the smell of oranges and spice -- we'd been drinking flavoured coffee.
3. While walking along a footpath between the backs of two rows of houses, I catch a whiff of cigar smoke. I imagine someone had exiled themselves to the garden to enjoy their cigar in peace.