P-hub fallacy

Pointing out a certain contraband or prohibited action alike which only implies said person pointing it out also knows or is involved in said prohibition.
Though it doesnt have to be immoral, it could just be akward or embarrassing.

P-hub intro plays
B : hey, you cant watch that here are you crazy?
A : watch what? What am i watching?
B : thats obviously p-hub
A : you know what the intro sounds like??

C : you just proved the p-hub fallacy B

/

B : how do you- yknow, do it with your fingers?
A : oh, 5 inch in the curl
A : i mean, thats what they said! I dont know myself i havent tried anything like that yet.
B : ? Did you just excecute the p-hub fallacy