Let's first describe the equipment involved in this process:
|1. A UK power socket|
|2. A European plug|
|3. A Bic biro lid|
- Insert the prong on the Bic biro lid into the earth connector. This is the one in the middle, at the top. As you do so, this will open the shutters that protect the other connectors.
- Insert the European-style plug into the connectors that have now become exposed.
- Remove the Bic biro lid.
Follow these steps carefully, making sure to keep all conductive items (except for the plug) away from the exposed connectors. And don't forget your adapter next time.