Beginner roller skating
Cross a Wet Painted Line Like You'd Handle Aquaplaning
Avoid road markings in the rain if you can; they are the slipperiest thing on a normal street. When you can't avoid one, the drill is the one drivers are taught for aquaplaning, and it's the same instinct you have to override: don't brake, don't steer, don't push. Hold the line you're already on and let the wheels carry you across. Everything that feels like a correction is what puts you down.
Road markings are the slipperiest thing on an ordinary street, and in the rain they are in a different category from the tarmac beside them. The first rule is simply to avoid them as much as you can.
When you cannot avoid one — a crossing, an arrow, a line at a junction — the drill is the one drivers are taught for aquaplaning, and skaters describe it in exactly those terms. Do not brake. Do not steer. Do not touch your trajectory. And do not push while you are on it.
Every one of those is a suppressed instinct, which is why it has to be decided in advance. The correction is what puts you down, not the paint.
Hold the line you already have and let the wheels carry you across. It lasts less than a second, and on the other side you have grip again.
Keep going: this is one section of the full Roller Skating for Beginners guide — sizing, gear, stopping, and where to skate, in one page.