system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Why didn't Harry just check to see if Sirius was safe before venturing into the Ministry of Magic?

I understand that the attack on Mr Weasley turned out to be real so it would have caused Harry to believe Sirius' capture was real too, but surely Harry could have just given Grimmauld Place a call?  It takes a lot less time, Grimmauld Place is safe and even Snape was able to eventually contact Sirius.
gpt
The whole book/movie was about how Harry wasn't in his normal state of mind, and that Voldemort was starting to have an effect on him mentally. Harry was coming off the tri wizard tournament where he saw his friend murdered and the mad man that murdered his family among so many others get resurrected. Immediately after that most of the wizarding world began to turn on Harry and Dumbledore, which also deeply effected him. Then he gets attacked by dementors and almost gets expelled for defending himself. Not long after that he comes to learn that the people he cares about are being instructed to keep a safe distance because of Harry's connection to Voldemort. Dumbledore, someone who has always been there for Harry during his time at Hogwarts, has also completely shut him out, which really hurt. Then there's him and his friends being tortured by umbridge. All this adds up to Harry not being rational. He's angry, he feels abandoned, he feels like the world, save for some close friends and Sirius, has turned away from him. They called him the boy who lived, the one that stopped Voldemort, and now they called him mad, a liar, etc. When he gets the vision of Sirius, he's not thinking about calling him, he's thinking he's about to lose the only family he has left, and he needs to save him.