Cash likes his jerseys now coz it is cold, but everytime i put them on, he goes crazy. He rolls around and acts like there is something crushing him, but after a little while he gets used to them and likes them.
He used to be much worse! At first he used to sulk for hours. He didn't want to play, didn't want to eat and he would completely ignore me.
They get used to it with time

Just don't reward their sulky behaviour with taking it off!