Keep it up MTT and one day you may:
a) need that gun and it's on the cart, many yards away.
b) cart spills and a gun goes flopping away on the ground...
c) you start to put that coat and the gun goes flopping away on the ground...
d) some kid gets that gun and maybe 1) blows his/her head off 2) blows some other kids head off 3) runs off and sells it 4) any combination of 1,2, and 3.
e) you are in a hurry and leave the cart with the jacket and any number of bad things happen.
Oh, and if you are in Texas walking off from that cart would be considered abandoning the gun or leaving it where kids can get to it, which are both against the law.
Keep the dang on you, were it belongs.
"The government has confiscated all of our rights and is selling them back to us in the form of permits."