The SWATbot's father (Robotnik) gave orders to his SWATbots to go after Shadow and convince him to join the stupid 'League of Villains' which he is forming to defeat Sonic (me), Sonia and Manic, typical Robuttnik.

you knew exactly where he "lived" (with you), especially because when you were bored you would disturb him or just offer him pieces of cake. let's say he was your only companion.

"I already said I'm not going, go away, you pathetic robots." Shadow grumbled as he crossed his arms and narrowed his eyes with his usual scowl.