Lotso's confrontation of Andy's toys at the dumpster is the only scene which precisely demonstrates how terrifying he truly is.

Lotso on the other hand is purely malicious and takes it out on others.

Sid was just a kid with an appetite for destruction, Scud was just an aggressive dog, Stinky Pete was just bitter about never having been played with, Al was just a greedy adult who wanted the big bucks the Woody's Roundup merchandise would give him. Especially compared to previous antagonists in the last films.Even Woody, after he and the others escape the incinerator, considers Lotso too far gone to be worth the trouble. On the inside, he's a sociopathic nihilist acting like a mob boss who not only doesn't give a second thought to sending new arrivals to the Caterpillar Room where they'll inevitably be used until they're ruined and sent to the dump, but is so bent on doing so that he's turned Sunnyside into a nigh-inescapable prison where he rules with an iron fist through lies, abuse, surveillance, coercion, and even brainwashing - all for the sake of forcing his nihilistic worldview upon any toy he possibly can as a self-validating coping mechanism for the heartbreak his former owner put him through. On the outside, he's a caring stuffed bear who looks after all the other toys at Sunnyside. Lots'o -Huggin' Bear, as expected from an Ax-Crazy killer teddy bear.Watching your icons futilely struggle for their lives in the inferno.

Lego toy story 3 incinerator