Just goes to show that some staff shouldn`t be anywhere near animals if that`s the advice they are giving out. Rather than being positive, it`s all negitive with no real knowledge of the species. Robos are fast, don`t particularly like handling but some will sit on your hand if they are tame enough. The aggression thing can sometimes be cage aggression and they see anything as a threat that appears within their cage space! My robo sometimes makes a dash for my hand but I play a game with him of cat and mouse and he`s just a little unsure really. I leave him alone most of the time and spot clean around him while he chooses to run around and get in the way! But it`s the way he likes things. I don`t see it as `aggression`, I see it as him telling me in his own way that I`ve invaded his space! Which is all it is really.
If you take on a pair, all you need to ask yourself is:
1. Do I have the space for a second tank/cage if I need to seperate?
2. Do I have two of everything for a pair to share like wheels and some open ended accessories?
3. At the end of the day, seperation isn`t a bad thing for the robos, it can just be a frustration for the owner!
I kept a pair of males in the past that needed splitting up which I never wanted, so I only keep the one these days to prevent the same thing happening. But that`s not to say a pair will always need seperating, although it does tend to be a common occurance.
Try not to listen to bad advice in shops but it sounds as though you know more than they do anyway!