Has anyone tried using two RTW tickets at the same time? Or will the airline cancel all your reservations if they find out?

I am planning to do the following with 2 oneworld 3 continent first class tickets:
(The order in in the usage of the flight coupons are shown in the brackets along with comments regarding stopovers)

Ticket 1:
YVR(1)-HKG(stopover for 1 month)(2)-BKK(7)-LHR(8)-YVR

Ticket 2:
BKK(3)-HKG(stopover for 1 month)(4)-YVR(stopover for 4 months)(5)-LHR(stopover for 1 month)(6)-BKK

In effect the "intended" itinerary is as follows:

(1)YVR-HKG "Ticket 1" (to visit family for one month)

(2)HKG-BKK "Ticket 1" (brief vacation in BKK)

(3)BKK-HKG "Ticket 2" (continuing visiting family in Hong Kong)

(4)HKG-YVR "ticket 2" (return to work for 4 months in Canada)

(5)YVR-LHR "ticket 2" (one month trip to Europe)

(6)LHR-BKK "ticket 2" ("vacation" in BKK for a few days)

(7)BKK-LHR "ticket 1" (continue europe trip if i want to)

(8)LHR-YVR "ticket 1" (finally home!!)

Do the oneworld airlines have any prohibition for this kind of ticketing practice?

If they find out, do they have the right to charge me the full first class fare for two return tickets (ie. YVR-HKG-BKK-HKG-YVR and YVR-LHR-YVR) ?