To be sent on a 'wild goose chase' means that someone has deliberately misled you. For example: Perhaps they intentionally left you clues suggesting where there was some hidden treasure. You would then rush off to search for it. But as there wasn't actually any treasure you would never find it. "I don't think there's any treasure here. He's led me on a wild goose chase!" (This is a saying that everyone knows but I've never actually heard anyone say it in real life) To 'worm your way out' of something is to avoid doing it. Usually the 'something' is something you have already said yes to, or is one of your responsibilities. "My husband was meant to come shopping with me today but he wormed his way out of it"

Una "wild goose chase" es una búsqueda de algo que no existe. Por lo general, es cuando alguien quiere perder su tiempo o distraerlo asignándole una tarea que requerirá toda su atención pero que nunca producirá un resultado. A "wild goose chase" is a search for something that does not exist. It is usually when someone wants to waste your time or to distract you by giving you a task that will require all of your attention but never produce a result.