a) supplying an insect deterrent device comprising an extension shaft having a length and first and second opposing end regions, the first shaft end region joined to a finger attachable ring-like structure, the second shaft end region joined to a striking head, the shaft having two cross-sectional perimeters separated by at least about 10 mm with each perimeter having a length that is substantially less than the shaft length, the ring-like structure, extension shaft and striking head each having a longitudinal axis, the ring-like structure longitudinal axis being parallel to or forming an angle within about ±70° to the extension shaft longitudinal axis, the extension shaft longitudinal axis being parallel to or forming an angle within about ±30° to the striking head longitudinal axis;

b) releasably attaching the ring-like structure with joined shaft of the deterrent device to a human finger having a distal tip which is not a thumb such that the ring-like structure circumscribes only a single human finger and so that the striking head is positioned distal to the finger distal tip;

c) forming the finger with the attached deterrent device into a pre-flicked or curled state;

d) flicking the curled finger to cause the striking head of the deterrent device to strike an insect.