I'm really careful now, the only wood in my house is the roof trusses and I am up there doing the inspection about once a year.
Had a bit of experience with it after have 3 different blokes go around my house and not find live damage I knew was there. I've pulled roof sheets off and inspected live termites in my roof, then successfully got rid of them. (termidore drilled every 150mm around the slab and soaked the wet areas)
I had an inspection done 6 months before sale, all clear. The vendors inspector gave it the all clear and I moved out... spotted mud drops in the bathroom a month later when the house sale had just went through, I had suspected there was activity there, this was on the cooling off period. I called the real estate agent and told him that we had a problem, he said clean it up and paint it
I was like, you got to be fucking joking me, the people who had bought it were 22-24yrs old, 100% mortgage and she was pregnant. It was a speccy house with sparkling pool so they were blinded by their first home. I told him I had a termite crew coming down and he must tell them or I was contacting the conveyancer.
The new vendors were happy with my find, were happy that I paid $2k to sort the problem and I would pay for inspection for the next 12months... not for damage or further treatments.
The are an absolute chunt but any proactive owners can find them easier than a $250 visit from a pest inspector.