In article , says...

James Gagney writes:

Today I tried drilling a hole in the guardrail - but the drill bit
wouldn't make a dent.

See picture he
http://www5.picturepush.com/photo/a/...mg/9153893.jpg

What would you use to drill a hole suitable for mounting a garbage can
where there is no electricity available?

That railing doesn't look like the kind of thing a poster here would
own...

Are you sure the owner wants holes drilled in his railing?

Right!

Those guardrails are designed to collapse in the event a vehicle hits
one. This reduces injuries to people in the vehicle. I would rather not
be responsible for modifying one or mounting objects on one which would
in any way alter the function of it! (And then get some lawyer claiming
I was partially responsible for injuries caused in an accident.)

Traffic engineers would have a fit if they saw that. They go to a lot of
work to get road signs and so forth to "break away" if a vehicle hits
them. Like this...

http://safety.fhwa.dot.gov/roadway_d...hardware/ctrme
asures/breakaway/