Made of Nagant’s hair, which are still “apart” of her. Even so, can you prove he’s sensing the bullets or her? She was in range of Danger Sense.
Also explain the mansion explosion. I guess Danger Sense just didn’t want to go off that time?
Why would he sense her for bullets coming from not her? And if you’re trying to make an argument that genetic material is the only thing that activates danger sense you’re going to need far more evidence. Also, that raises even more questions because you’re claiming that hair counts as a part of a person when it is removed, yet it being removed makes it not part of that person anymore. Unless you want to argue meaningless semantics with no basis in the story, your entire bullet argument is theoretical with no actual backing.
You mean the explosion he walked away from unscathed and that we barely saw any of? That explosion? Prove Danger Sense didn’t activate there and that’s how he got out of it with no difficulty.
Attempting to seriously find faults in Danger Sense from a gag scene, a convenient occurrence and an off screen explosion that you can’t even make any determinations off of, especially when nothing of this supposed limitation has been shown or explained by the story or characters themselves in full, is foolish.
The joke of the scene is that Hatsume’s breasts approaching didn’t trigger danger sense. The explosion isn’t even a factor about why it didn’t trigger. And if it doesn’t trigger for explosions all the time, why did he say he was off guard? Wouldn’t he know that explosions don’t trigger it? Why would he attribute being off guard to it not activating if intent is the only thing that ever matters? Are you saying Deku forgot how his own ability works? Or is he saying that if he’s on guard, that Danger Sense can sense danger with no intent?
Also, have you considered the explosion just doesn’t count as dangerous to him? We know that danger sense doesn’t activate if he isn’t actually in danger from attacks. The explosion could literally just be nothing to him so it didn’t activate, hence why he and Iida don’t care about the explosion and only refer to Hatsume’s breasts. Because the explosion is irrelevant, but her boobs in his face is, in gag-like fashion, considered a threat to teenage boys. Almost like it’s a god damn joke or something and not a topic to base an entire ability around.
When a rock falls on Deku’s head in a non-gag scene and Danger Sense doesn’t activate, we will address it not activating. Until such a time, it will remain as it is.