No, to catch an STD you HAVE to have had contact with someone affected with that STD. The only exception may be a parasitic STD such as crabs which can be transmitted without direct contact.
Then there are no risks.
are you for real? of course not!! (although if you never pee again after having sex once then that is a problem but it doesnt mean you have an std!)
No
Yes. Assuming that they knew or should have known they had the STD before they had unprotected / unsafe sexual practices with you.
Because having a STD compromises the immune system which will allow the virus to transfer more easily.
someone who doesnt react, reply or talk as much as most people, maybe someone lazy and doesnt do much, if you try talking to someone who doesnt talk much, it is like trying to talk to a wall
It is an STD that you can get from having too much anal sex with someone who has chlamydia.
Only if someone who has a STD used it before you for masturbation for instance and then you use it while their fluids are still on it. Vegetables don't carry STD's unless we put it on there. Same goes for other food items, furniture, cars etc.
Someone that doesnt do things for others
yes
Stubborn
He can do that wether you like it or not yust make sure he doesnt worhip them so much that he takes an STD or two home for you.