Dealing with short stackers

[Invigilator]

I have been running into a lot of these guys with 5 bucks or less at the 25 max game, and I am getting frustrated with the situations I am getting put in.

Some guys are careful TAG short stakers, while others are psycho's that play their short buy-in like a lottery ticket.

Theoretical situation.

You are in the BB ($30 bucks or so).
Short stacker in middle position opens for $1 (leaving $3.00 back)Every one folds to you.

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The following questions have been coming up in my head as I consider these types of situations.
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1. Before considering your own holdings, would you tend to play this straight up as if he had a full buy-in?

2. Does it become more difficult making decisions for us post flop because of the size of a called pot compared to his remaining stack?

3. Would shoving (with a certain range) be better to avoid this particular situation?

4. What range?