So...what's involved in removing bolts, anyway? My knowledge of bolts is very limited....
Assuming we're dealing with expansion bolts, can you just take it out the same way it went in? Or, do you have to pry it out with a crowbar? Is there a sleeve you have to get out?
What about glue-ins? Do you have to saw them off?
How does one fill the hole? Simple epoxy and a little dirt to hide it? What if the bolt shears while trying to remove it? Saw off the end?
Dumb questions? I'm not into sport climbing, so I never really learned anything about bolts, or how to remove them.
TIA!