It certainly takes some premeditation and creativity to make it work without making the lady in question suspicious, but I also think that most women would greatly appreciate both the effort expended and the resulting memories.
Here are some of my favorite engagement "paparazzi" shots! Fellas, please give this option some serious consideration.
Another recommendation for guys planning a proposal? Get her friends and family to be there to share the joy! Evani has a great story for this (her man proposed at her favorite place, Disneyland, and then all her family jumped out!). Here are some more rad photos from proposals, this time of happy family greeting the new bride-to-be.
And of course, this video is the ultimate in surprise, involving friends and family, and capturing the whole thing for fond memories! I cry every time I see it. Break out the tissues.
I also found this link that has tons of videos of proposals caught on (video) camera!
How did your man propose? Did he have someone take photos or video? If you're not engaged or married yet, do you have a dream proposal scenario?