Please, have some SENSE.

Just a thought:

Sense:
noun

1.    any of the faculties, as sight, hearing, smell, taste, or touch, by which humans and animals perceive        stimuli originating from outside or inside the body.
2.   clear and sound mental faculties; sanity
etc.

Since:

adverb

1.

from then till now (often preceded by ever  ): He was elected in1978 and has been president ever since.

2.

between a particular past time and the present; subsequently:She at first refused, but has since consented.

3.

ago; before now: long since.

preposition

4.

continuously from or counting from: It has been warm since noon.

5.

between a past time or event and the present: There have beenmany changes since the war.

GUYS.

They are not the same word. 

Please don't say you've "had a great day ever sense Grandpa came to visit." 

Grandpa is cool.

And he probably knows the difference between since and sense. 

So please.

Talk to Grandpa.

Figure it out.

Fix it. 

Let me give you an example:

Please have the sense to use the correct word, since I have just given you the key to choosing the right one. 

:)