Has anyone tried growing marijuana or has a clandestine lab
Share your experience if you've done or witnessed something similar
Also how does one get the seed?

You wan enter government wahala
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Nor worry, NDLEA go show you pepper

Personally I haven't tried growing BUT you should first read a lot of info about it on various websites or forums and then make a decision, because if you want a quality result, this activity should take you a lot of time and attention.
I'd like to try it sometime in the future… my buddy has been doing it for a long time and I know from his experience it's not very difficult if you prepare everything properly in advance to avoid mistakes.
He grows indoors all by himself. It's not a lab, just a well-equipped room with good ventilation, temperature, humidity and lighting.

I can't show pictures or tell you more here. Again, I won’t recommend anything specific here or where to get it. You can easily find this information on the internet.
I know for sure most experienced growers recommend starting with feminized marijuana seeds or autoflowering for beginners. Not regular for sure ahah. It's a long story to explain why.

Main thing is not to fall prey to marketing and try to analyse everything you read and write down to avoid mistakes, because it will be unpleasant if you buy a lot of stuff and your plant dies as a result