possible to store a units current order?

[wikidme]

im trying to make a spell similar to the conflagurate from wow, which makes units wander in a random direction when they are hit by it.

the problem is i want them to 'remember' which order they had before being ordered to go in a random location by the spell. however it seems there is no way to 'get' the x,y co-ords of a point order that was issued.

using the event 'unit issued point order' is not feasible.