If the catfish has a strong fishy smell, it has gone bad. You can also tell by looking at it, if you see areas that appear discolored, it is likely bad. Finally, press on it, fresh fish should bounce back and not feel squishy.
if it is floating to the top and is very inflated then its possiabling dying infacted i belive mine is right now sorry for you loss :(
the worst site ever
You know when french onion dip has gone bad because it has water on the top.
when it does not work
you know when you are not cotrolling the car.
check it
If you eat it and then throw up. ;)
If it is stale and a very light brown and nothing grows on top of it, then you know you have bad soil.
It will probably smell bad or have a noticeably weird flavour to it.
It as a dark color and it emits a bad order that is easily recognizable
You Die. Pendejo
Swap it with one you know is good.
Well it all depends if the sound of the engine is abnormal or muffled then it prolly gone bad and if it dont start then well you know its bad
Try smelling it if you still dont know, pour some into a glass and see if it looks clumpy or thick. Dont drink after its gone bad!