Having lived in cold and hot climates it is just a quickie stop off the roadside. So if fellow cyclist won't wait, then give chase . . .
In the cold, if there is snow about, you will leave a telltale yellowish trail . . .
Living in the desert where there are damn few 'comfort stops' in a hundred miles, we locate a saguaro cactus with a flush handle . . .
Remember: U-r-in control! Pun intended.