/script PetPassiveMode();
/cast Freezing Trap
You can successfully drop a trap while in combat. Testing this should only require 10-15 seconds as it is not "Maybe it will work" thing, it is extremely easy to pull off, just hit the macro three or four times in a row.
enjoy 
(this was given to me from a friend, i dont know where the original content is from but did not see it posted here….edited to make shadowwhisper happy)