Well, it can happen in some cases but it's rare, not like the things happening.... .........................I've witnessed superior Gods and Goddesses possessing the human body who have acquired some stage in spiritualism by sadhanas.
Even if you people are with such experiences, don't utter in the mass, you'll lose it to never getting back again.
Local witches kinda people can relate such things only if the spirits are from lower ranks called "Iter Yoni". The Gods and Goddesses like Shiva, Kali never possess people except those who have get their siddhis. This is the time when even the superior Lord Shiva cries in his helplessness with such person. If the gods to possess people then the world have been a better palce without polution, without war...so it's stupid talikg about gods possessing any one, i say, even if i declare you can spit on my face. It's only hallucination. Even if it is not hallucination, it is from Iter Yonis.
There was only one Krishna, only one Rama, Buddha, Jesus or such such...I guess you've figured out the things.
The day is approaching when the whole human kind gonna cry...but no help. The availabilty of divinity is going to fade away again....
Wake up people...