Crash Course

Very nice. Quick action isn't required but a few tricks are. Thanks

I used the falling trick twice. Seems not intended but the rest is so hidden.

I did the same as you @nGord.

@gmacpro thanks for the rating

@Block builder @nGord ... Well I intended to not make it very complex but hidden ...

But there is another real easy way which may be unexpected...

Spoiler: Hint

household things are real useful