This has nothing to do with Hayate`s smart.
I just don`t see why someone would say this fight between Curren and Hardis was a trap set by Hayate...
Explain it to me, please !
If anything, it`s thanks to Hardis that Fate actually got there in time since he was the one who made the hole in which they entered and stalled Curren by talking to her since she was leaving.
Maybe, it`s more Hardis trap.