Is this a Trap?

Of late I tend to be more wary of students who ask me to "check their work".

I would go as far to say that sometimes the whole thing is a loaded gun.

You check & they expect "A" or high marks when you check.

You check & comment; they update their work, and keep asking you to check for the 2nd, 3rd, 4th, 5th , 6th time, AND expect and "A" (when you ended up doing their work by multiple checks)

You check & tell them that the checking is merely to ensure pass, and they tell you "then what's the point of finishing it early and asking you to check?"

You check & may overlook one point (that you pointed out to another student)

You check & help them, and they get good marks, and say this is all their effort (almost always)

You check & allocate time & they are ungrateful

I should probably go with my friend's style, no checking services.

She checks thoroughly after they submit.

She will only answer questions related to the assignment, but NO CHECKING POLICY for her.

I should probably do that.

For my sanity.