I remember that it was going to rain when I took these photos. The quality was also not good because the camera lens was fogged up from my long stay in the air-conditioned office.
I saw the Plain Tiger landing on this Petraeovitex wolfei (common name: Wolfei's Vine) at the Carpark Garden before the sky poured its contents. So was it seeking shelter or was it seeking out nectar from this climber. I guess I would never know.