I was flipping through some past issues the other day and ran across this page from the Marvel Knights Spider-Man title. This is issue #2, and interestingly enough this issue is written by Mark Millar (with the Dodsons on art). Notice what Cap says in the last panel.
Just to set the scene: Aunt May is missing and Peter goes to the Avengers for help.
I just found the whole scenario rhidiculous and contrived. I mean, Spider-Man doesn't feel comfortable trusting his secret identity to Captain freaking America, but then he goes off and asks supervillains like the Owl and the Scorpion, long-time foes who have tried to kill him more times than I can count, for help finding Aunt May?!? That makes no sense, none at all.