I don't know how to make this a poll or I would have. How do you mount your tap handles if you use a refrigerator... on the door front or on the side of the fridge?
I mount mine on the side that way I can still use the shelving in the door, I don't have to worry about any tubing moving around getting tangled when the door is opened and closed. I think a lot of people are afraid to drill into the sides because they don't know where the gas lines or wiring is located. If that worries you, I can tell you this, I've never seen refrigeration lines in the sidewalls unless its a specialty unit, nor wiring. I used to work at the Hobart refrigeration department as a field engineer, manufacturers take the most effective route that also makes repair work accessible. Most refrigeration lines run up the back and through the back wall to the evaporator, commercial fridges sometimes don't even penetrate the cabinet with the refrigeration lines. Wiring is another issue altogether, it can depend on whether the unit has mullion heaters etc. but they generally run up the corners or edges and yes they can be inside the expanded foam cabinet but still they are generally along an edge. So... in 99% of the time... you can drill as many holes in the side of your fridges as you have taps... just stay 4 inches or so away from any edges or corners.