I think the thing to do is not be paranoid. Suspicious, yes! One of my GT-Rs I seemed to forever picking up nails but luckily they were slow to deflate and TPMA alerted me before the run-flat sidewalls got damaged the nails were in the main body of he tread, an my friendly tyre repairers were happy to take my word that I hadn't driven on them flat and so treated them like a regular puncture (a lot of branded tyre depots are told by head office never to repair run flats and to only supply new replacements!).
I was suspicious because they all seemed to be the same type of nail. They all happened close to home, but there was nothing on my CCTV that showed unusual visitors - there were frequent parcel delivery callers but never saw anyone doing anything out of the ordinary. Interestingly, the spate stopped after I replaced the Dunlops with Bridgestones so may be the D treads were just that bit more susceptible to picking things up...
It would be relatively easy for someone to quickly place a nail or screw under the tyre point uppermost causing penetration as you rolled away. But they'd have to be pretty determine to do it more than once.
Having said all that, there was an instance down here last year where a group of travellers vehicles were moved on several times in the Exeter area and their parting gift was to scatter the contents of several boxes of screws across all lanes of the M5...
62/176 Ultra Yellow GT4 350Z - Muttley
(its the only Z in the village ....)
Champagne R35 GT-R MY15 Premium 45th Anniversary Edition - The Expensive Mistress
Vermilion Red R35 GT-R MY 14 with Recaros - "The Car with No Name"
Blade Silver Juke NISMO Manual - Dumbo
Storm White Enhanced R35 GT-R
MY11 with Recaros - The General
Titanium R35 GT-R MY09 Premium Edition - Dastardly