Contoh dialog cause and effect

A : Hi
B : Hello
A : Hey did you watch tv last night ?
B : Nope. Why ?
A : There's said about DRUGS !
B : What ? drugs ?
A : Yes ! And it said there's much thing cause effect if we consume drugs. Example : Brain disorders
B : Really ?
A : Of Course
B : I think from now we must be careful
A : Yeah you're right