So I was trying some things with execute and scoreboard, and I noticed some wrong behaviour regarding execute commands that have a scoreboard command in them.

When you stand very closely to an entity, and you perform an execute-scoreboard command on it, the @e[c=1] selector will prefer you (the player) over itself. When you use an execute-say the @e[c=1] just selects itself, as expected.

Here are the commands I ran to prove the bug:
Command:

execute @e[...] ~ ~ ~ scoreboard players set @e[c=1] testObj 1

Result:

The scoreboard value of you (the player) for testObj gets set to 1

------------
Command:

execute @e[...] ~ ~ ~ say @e[c=1]

Result

The entity says it's own name.