[Like a streak of light, Spidey arrives just in time -- swooping down from the tree to deposit his passenger next to Jack, then bounding forwards to lay a haymaker right in what passes for the spider's schnoz.]

This is for your own good, you know. Tough guy like Jack, he'd just give you indigestion. [He ducks under the gaping mandibles.] Now, now, don't get any ideas! I promise, you wouldn't like the taste of me either. Besides, isn't that cannibalism?

[He catches under the abdomen and heaves, tossing the monster right in the air. It flies back a good thirty feet and fetches up hard against the base of a sturdy oak, then lies there, stunned. He webs it fast before it can recover, and turns back to Jack and the civilian, dusting off his hands.]

Ma'am, are you all right? Jack? I don't want to scare you, but we should probably get going before more of these guys show up.

[As if his words were a cue, more chittering from the trees overhead.]